Your company captures the value you provide, and attempts to pay you as little as possible in the process. This is the process by which profit itself is created.
Think it's unfair for one person to negotiate against a company? Maybe, but that's where unions become useful.
There's ill will against them, and they're not widely used (at least in tech), but maybe that's the problem. If so it's not a problem worth tearing down the whole system.
Actually, it seems like not even in the past you did, since many many companies were started in a garage.
Here's Steve Wozniak debunking the Apple garage myth:
https://www.theguardian.com/technology/2014/dec/05/steve-woz...
And an entire thread debunking the "started in a garage" for the market dominators of today:
https://twitter.com/historic_ly/status/1119980086420299777
These founders have always had some access to resources above and beyond what is considered "standard issue." It's about time we get realistic about the necessary conditions that were required to start these radically successful companies, because we shouldn't design economies or social policies around myths.