I won't speak for others, but at a previous company, I almost singlehandedly carried a single project to completion that brought in over a million dollars in a

I won't speak for others, but at a previous company, I almost singlehandedly carried a single project to completion that brought in over a million dollars in a single calendar year. Some of that obviously goes to company overhead (offices, administrative roles, etc), but let's be extremely generous and say HALF of that is overhead. $150k/year is peanuts compared to the cost of having a valuable person leave your company during a large project.