That is working for someone vs owning something. It wouldn't make much sense otherwise for either party.
I mean, imagine you work for a company and come up with a change that saves a million a year. Surely you don't expect to receive that million, do you? On the other hand, it's not your problem if sales go down this quarter, since your contract pays fixed salary.
> it's not your problem if sales go down this quarter
of course it is, you can get laid off.
Capitalism works by siphoning off value that workers generate and putting it into the pockets of their employers. You're right that employees are (somewhat) insulated from risk in this scheme, but I don't think it's crazy to suggest that someone is entitled to more than 7% of the value they generate.
I mean, imagine you work for a company and come up with a change that saves a million a year. Surely you don't expect to receive that million, do you? On the other hand, it's not your problem if sales go down this quarter, since your contract pays fixed salary.