businesses like Siam Cement and Siam Commercial Bank. He's not all that powerful but is known to have often intervened in Thai politics.
Rich leader, poor country?
It's interesting that, among the nations listed above, the UK has the highest net worth per capita. Although the sample is small, it raises questions over whether there's a correlation between how wealthy your leader is and how poor you - the citizen - are.
However the data we have come across did not show a strong enough correlation.