Re: Milei, he is a professional economist with pretty much the most extreme contrarian views opposing the Keynesian school of thought, which is the belief that government should control the economy with monetary policy, setting stable prices and taxation. Milei is an anarcho-capitalist who follows the Austrian school of economics which is the side that says government has no special powers over money and cannot ever have complete awareness of all needs therefore cannot accurately determine prices. If you want to find out what intelligent like minded economists think about Milei, here is a good podcast: https://youtu.be/e38bjCBFuAw

So I think he has a very similar reason to visit WEF and tell them what's what.