This doesn’t really sound convincing to me. For one the scenario

what kind of person would turn down such an offer

implies that the only rational behavior would ever be to go for big chunks of money. I’m not at all convinced, that that is a much healthier attitude than trying to have the company you built up often with loads of work continue to operate according to your (ethical) standards. And then there is the people buying the company, which will with acquisition be actually in the exact same position to have this company completely for the sole purpose of profit. That draws a worse psychological picture in my book. I also really don’t think that it is so easy to get a business going so that it becomes growing and worth a billion dollars like you make it sound.