Your context is missing.
Capitalists cannot do anything without having the thousands of workers that put in the hours and stress to make the 'ideas'/ 'dreams' capitalists have, into a reality.
Those workers' low pay are also taxed heavily in order to help society work.
Socialists want to make sure those heavily taxed workers are paid a living wage, so there is less stress and mental illness and therefore less drain on society's NHS to help society work better.
If the 1%-10% don't want to pay more in tax, then pay your workers better.