This is really why we need to have changes in the way we live our lifes personally as well. By working 40h/week for a capitalist company, you are supporting capitalism 40h/week. Obviously it is not pure support, as part of the work might be needed or is wasted, but it certainly requires a lot of work to fight against that system to make up for it. Working for the public sector, a cooperative, a non profit or some other none capitalist workplace would help a lot with that.
Oh and in our world it is impossible to live without any sort of harm. It should be avoided, when the effort is reasonable.
Never stop an enemy, when they make a mistake.