Because the majority of workers are doing the minimum amount of work to get by, because ~50% of workers are below average intelligence, because those with the entrepreneurial skill and/or business management competence necessary to make this happen benefit more from the current system and have less motivation to mess with it.
Better to have a system based on creating things.
Note that capitalism does not exclude worker-owned companies at all. You're free to start one.
Pretty damning critique of capitalists there, comrade.
BTW, studies of the bones of pre-Columbian Indians shows they worked hard and suffered from periodic famines, as well as a lot of violence.
Industries tend to require raw materials, which many times are located in or around land.
But the profits were looted from the workers who actually built all that stuff.
Capitalists aren't the ones hammering in steel spikes or wearing clean-room fab suits.