One point against capitalism that I don't hear frequently is that rich people deliberately waste money and destroy wealth. For example, ten thousand dollar bottles of wine. The point of the flagrant waste is it provides an opportunity to display their financial power - I can burn money and I don't care. I don't need three yachts, that's why I've got six.
Whenever I see rich people blowing cash on clothes, cars and other luxuries, I think of the weeks, months, years and decades of productive labor they have stolen and are deliberately destroying in order to perform their wealth.
It's not a "trickle down" system, it's a "trickle up and poof it's gone" system.