Capitalism doesn't allow for socialism to exist within it. Under capitalism only cut throat business flourish. Trying to have an island of communism thrive on a sea of capitalism is like trying to plant apples in the desert. Only when the entire system becomes communist, it can thrive since capitalism is made for only to capitalism to make it. A company that values people over profits will be drive out of business by one that sells cheaper products by cutting all benefits to their employees and by paying them shit. That is why changing the whole system is the only way to go forward.