Under these circumstances, mercantilism, or state directed economic development, became for the externally politically supported regimes the legitimating basis for their intervention in the economy and the restructuring of government business relations. Over time their survival became dependent upon economic success. Instead of having to 'buy out' rent-seeking strong men as the fledging national regimes in Africa had to do, they could at first command authority and resources to a degree sufficient to protect policy-makers from clients demanding payouts.
[NB: the speech marks are in the original text]
I can't get the meaning of 'buy out' in this sentence.
I found in the dictionaries: buy sb out =
1. pay sb for their share in a business;
2. pay money so that sb can leave an organization;
3. purchase the entire stock.
To me, none of them seems appropriate.
What's the the meaning of
buy out? Do the inverted commas change it?
Thank you in advance!