Seems a bit more like collectivism to me. Remember, everyone is choosing to and agreeing to be paid the same by choosing to work at this firm. If they disagreed

Seems a bit more like collectivism to me. Remember, everyone is choosing to and agreeing to be paid the same by choosing to work at this firm. If they disagreed, they'd be voting with their feet. Socialism is a society level compact that cannot be unwound the same way if at all.