The capitalist system IS entirely bad.
Any philosophy that basically says "Take Take Take and take some more just for the sake of taking more" and allows people to starve in the streets while billions are spent on weapons and spaceships, has no redeeming qualities at all.
The only possible way I could see any good in it is if people are using it to make money which they give back to the community. But that doesn't mean the system has any good in it, it's just that sometimes you have to use what's there to get what you want. If you can use it for the benefit of your people and not get corrupted by it, but that's rare...