Not sure I understand you. Why do post-acquisition wealth need an justification at all?
> Founders really take far less risk than employees.
If it would be true, why aren't you a founder? You know, blaming other people for wealth/startup/marriage or government/party/boss/partner is easy. But when it comes to actual execution, most of these people come up blank.
You have worked for a startup. Well, you was aware of the risks. But I'm pretty sure the founder had more risks than you. I say this as someone who founded a company recently.