No, we're not rich. Not even close. You still don't get it that $1 is not making your rich when you are living in 1st or 2nd world country?
The key is PPP (Purchasing Power Parity) What will I be able to buy in Germany or Austria for $1? It is not enough to buy you even one hot meal.

Signature Campaigns are not offering you a stable position, it is more like freelancing. Plus, you need certain level of education to contribute.
Basic English proficiency + some knowledge is a must, do you think that citizens of the poorest countries in the world are qualified?
Sure, they will learn if given the chance, but that is the problem - who will teach them?