Imagine if you only had these options. You want electricity now without relying on completely overhauling your infrastructure to meet new grids. Solar,wind and anything always has to get added into it like it’s a new part of the circuit. This influences poor nations heavily. We already have cheap oil and gas electrical infrastructure because we’ve been developing it for 60 years. Just look at the investment prices and you will see they don’t get to make choices.

Edit: forgot to mention this industry in particular has been for a lot longer than anyone else in modern society using incentives and lobbying to also influence income streams.