Idk, plenty of companies that tick all three boxes and are not like this at all.
A single owner vs a company without a principal shareholder & how they threat humans is just a gamble.

Overall it does have to do with ownership & how the company culture was built tho - in Valve there are like 20 people running a billon monies company. They all have enough, and are happy.

Oh, and Valve it's def a "for profit" c company, being an actual non-profit is a completely different thing.