How the hell are you supposed to play the game and “be better” than the opposition, when the opposition is taking advantage of you?
You do that by not murdering them after you have taken power and over the means of production.
Having all the world’s fortune in the hands of about 10 people. We can’t stop this by playing nice and asking nicely.
Alright so you've seized all the money in the world and taken over all the land and machinery that enables production through the application of labor via militant witholding of the same. You and your comrades have all the guns.
...why at that point do you need to use those guns to murder people who are no longer holding murderous control over those common resources?
I refuse to acquiesce to or defend a system of belief that requires people die.
Once you win, you don't kill or you never had moral authority to employ violence in pursuit of winning in the first place.