Socialism is an umbrella term for systems that rely on the workers seizing direct control over the means of production.
We don't need bosses. We don't need to gatekeep access to resources based on labor. We don't need to compete. We don't need somebody else to manage us. These are all features of oppression.
Reform comes from the threat of revolution. They will not give us better wages until they fear we do not need them at all. Focusing on reform helps nobody.