If there's one thing capitalism is very good at, it's externalising costs - and in my opinion that's precisely how it's kept its reputation (in the West, at least) as so much superior to any other economic system.
It's very nifty. As long as all the vices are conveniently offshore in the places that people already don't really think or care about (or buried deep enough in the underbelly of your society, where it has the same effect), you can extol only the virtues and continue to reject any useful change.
I'm starting to think that from a global lens the economic system doesn't even matter - none could really have mitigated the unbridled greed combined with the population explosion of humanity in the 20th century. Now most of us are stuck relying on the poverty and deprivation of others to support the vaunted quality of life of the 21st; food, clothes, etc can only be so cheap when somebody is willing (or even forced) to take pennies to produce them.