EX: Corruption is a great exmaple of https://en.wikipedia.org/wiki/Nash_equilibrium
Using what measure? Using total GDP it seems to be 8th or 9th (behind, for example, Italy) and per capita it is pretty low 120th or worse.
If you take actual quantity and calculate using dollar terms, this is what you get: https://en.m.wikipedia.org/wiki/List_of_countries_by_GDP_(PP...
The picture is complicated by the relative populations though. Per capita, the EU is $25k, China is $13k, US is $54k, Germany is $46k, and India is only $6k. Unfortunately, the PPP calculation is very complicated and controversial so I don't really know how valid or useful these numbers are. Unless we're going for a trivial definition, it also doesn't say much about availability of luxuries, infrastructure, stability of government/economy, etc. so it's not a 1:1 mapping of wealth.
How could a people even breed themselves to 1.3 billion with the lack of resources?
These stories are someones fabrication. There is plenty of water in India or their population wouldn't be growing.