Maybe because you're a resource and not a cost center?
It's not always the case - some job roles are fungible - but I don't think that's the case with a typical HN denizen.
Let me put it another way. Why is paying the CEO more a better use of money to paying an employee more? Doesn't that build in a lot of assumptions about untapped value? And (at risk of getting out of my depth) paying the shareholders isn't the always the right thing to do. Don't most tech companies avoid giving dividends in favour of using the money to improve the share price? Which brings us back to employees and their potential value...