I do not see how capitalism makes poverty go away. I believe it is capitalism that has brought this so much poverty to the world with the few privileged ones becoming rich and rich and super rich and then inflicting pains on the less privileged masses by amassing wealth. I think it is even communism that ends poverty, not capitalism.
For a competitive society we need capitalism, if not the government controlled companies wont be doing the best service and if you allow private investments then there will be a healthy competition and that will help the end users and that is what we want.