Jeff Bezos is sitting on $97 billion because of stuff like this
Amazon made $47B in gross profits in 2016. They have 540,000 employees.
If they gave every employee a $5/hr wage increase and increased their workforce by 10% to reduce time pressures on individual workers, it would cost them between $6B and $9B per year (assuming 40 to 60 hr average work week), still leaving about $40B in gross profits. That’s still a ridiculously huge amount of money being made.
But capitalists always want to squeeze out ever more profits and this is always done by exploiting workers.