Also, as someone who has lived in the US and Argentina, and has spent a good portion of life living in the "poorer class", I have to say being "poor" in Germany seems lightyears better than it is in those two countries, although I haven't experienced being poor here, only in those others.
The first time I saw a German ghetto I thought it was joke. A German ghetto is a pretty nice place to live in most countries, in the US it'd be like living in a multicultural poorer neighborhood where everyone has healthcare and there's no guns or violent crime.
Anyway, it still amazes me sometimes how far Germans go with the "lets help the world" mentality. One of the first things, I got asked after arriving in Germany was if I wanted Hartz IV? I already had a fulltime well-paying job, but hey I wouldn't start for a couple months so they wanted to give me money until then! What country does that? So sure, you pay huge taxes, you get safer cities and even "poor" people have apartments, healthcare, food, tv, internet, etc.
This isn't to say all is perfect. There's plenty of things wrong in Germany (aka 6 month winters), but on the issue of "quality of life as a poor person", they are rocking it IMHO.