The person I was aiming at is Engels, who came from a factory owning family. He did not technically completely own a factory (without going into too much details) but he was still born in a bourgeoisie family and profited off the labor of others. You could call Engels a class traitor for this but he still wrote some of the most important communist theory out there. Sometimes it's not that black and white.

I meant that isn't being a communist factory owner immoral?