The amount of personal investment I have in an organization is directly tied to my personal upside. If it's my own company (I have run two startups) then I live and breathe it. If it's a Fortune 500 company or the government or whatever, then I give full effort, but I won't grind up my health or personal life. That's possibly justified with an 8 or 9 figure potential exit, but it's definitely not justified for 5 figures worth of stock.