They kept their top salesperson for four years. Here’s what it actually cost them.

We see this more than you’d think.

A business owner calls us, exhausted. Not because their numbers are bad — actually the numbers are fine. They’re exhausted because one person on their team has been making their life hell for years, and they’ve let it happen because that person brings in the most revenue.

This is the story of one of those businesses.

The situation

Their salesperson was, on paper, exceptional. Hit every KPI. Smashed targets. Brought in more revenue than anyone else on the team. On a spreadsheet, they looked like the best hire the business ever made.

Off the spreadsheet, they were a nightmare.

They were arrogant, dismissive, and impossible to work with. In team meetings, they talked over people and made snide comments. They rolled in late with no explanation, disappeared for days at a time, and then waltzed back in expecting a standing ovation because their commission was the highest. They only cared about one thing: their number. And they made sure everyone knew it.

The business owner saw all of it. The team saw all of it. And nothing was done.

Why? Because this person made the business a lot of money, and the owner convinced themselves they couldn’t afford to lose them.

The real cost

Here’s what nobody talks about enough: the cost of keeping a toxic high performer is not just cultural. It’s financial, and it’s significant.

Over four years, good people left. Not all at once, but steadily. A strong account manager handed in their notice. A junior who had real potential stopped putting their hand up for anything. The team became quieter, more guarded. People stopped going above and beyond because they could see that going above and beyond didn’t matter. What mattered, apparently, was being the biggest earner and doing whatever you liked.

The owner told us they could feel their culture slipping. They just couldn’t bring themselves to act.

Every time they thought about having the conversation, they talked themselves out of it. The project would suffer. The revenue would drop. The disruption wasn’t worth it. Sound familiar?

How it ended

After four years of this, the salesperson was caught drink driving in a company vehicle.

The owner finally had the grounds they felt they needed to act, and they terminated the employment. The salesperson lodged an unfair dismissal claim.

The business ended up paying legal fees, consultant time and a settlement. Not enormous, but not nothing either.

But the legal fees were the cheapest part of this whole story.

The real cost was four years of good people leaving. Four years of a team watching their leader tolerate disrespect. Four years of a culture being eroded, one bad meeting at a time. Four years of the owner’s own confidence and sanity taking a beating.

What we recommend instead

You do not have to wait for someone to be caught drink driving to act.

If you have a high performer who is poisoning your team, here is how we recommend thinking about it.

First, separate the revenue from the behaviour. Revenue is not a licence to behave badly. If you would not tolerate this conduct from someone who was average at their job, you cannot tolerate it from someone who is good at it. Your team is watching, and they are drawing conclusions about what you stand for.

Second, document everything. Lateness, absenteeism, conduct in meetings, complaints from colleagues. Every incident needs to be on record. This protects you legally and gives you a clear foundation for action.

Third, have the conversation early. A formal performance improvement process or a direct conversation about conduct does not have to mean dismissal. It means accountability. Do it early, do it properly, and do it with support so you do it right.

Fourth, get clear on the real cost. One person’s revenue rarely outweighs the combined output, morale and loyalty of the rest of your team.

The bottom line

The project survives. It always does.

We have helped dozens of business owners work through exactly this situation, and not one of them has come back to say they wish they had kept the person longer.

If you are sitting on a situation like this right now, come and talk to us. The HR Gurus Membership Club is built for exactly this: practical, no-BS advice from HR experts who understand business, so you can make the right call before it costs you four years.

Find out more at hrgurus.com.au/membership.