That's a very arbitrary cut-off point. There are nations below the top 80 that are very geopolitically important e.g. Somalia, Afghanistan, Libya, Yemen, Congo, Serbia etc.
Still all rather irrelevant.
If Pakistan, Nigeria, Thailand, South Africa were in a similar predicament you would hear more about it on the news and the problems would be solved quicker as more money is on the line.
On the other hand these low GDP shit countries nobody cares about them and the problems carry on for decades without market pressures to solve them.