> how much they would get paid
Most people in capitalist countries have very limited control over how much they are paid.
Of course things were different if you were part of the nomenklatura (leading party) or the secret police. You were a winner in communism then.
In a socialist regime, job assignments are made by the state. The state controls most industries and companies, and is responsible for assigning jobs to citizens. However, there may be corruption in the system where individuals in positions of power use their influence to give jobs and favors. It's important to note that the reality of socialist systems can vary significantly depending on the country or region in question and may have different characteristics than described.
But the basics of the corruption system is the same. In fact, low level officials traded jobs, cigarettes, food, for sex if it was a woman who wanted a favor or a job, and rubles if they were males, there are accounts of men giving their wives in order to obtain promotions, jobs, or moving to a another city.
In Venezuela as an example, or Cuba, it happens the same. Citizens don't deal with the State, they deal with low level officials who have the veto power. Basically you become a slave.
Communism sucking does not magically make USA style capitalism a magical utopian paradise where everyone has a private yacht. Sure between the two i'd definitely pick usa - hands down, but lets not pretend that the average worker in usa can just dictate what their wages will be.