The IMF and world bank are not actually there to help uplift developing countries. That line is just PR to obscure their real purpose. They are there to ensure continuing western hegemony over developing countries. Why do you think the IMF thought structural adjustment programs were a good idea for so long.

The Bretton Woods institutions were designed to assist the USA in its post-war project of global imperial hegemony. They were never meant to assist developing countries, quite the opposite, they were meant to assist the US and to a lesser extent western Europe to more efficiently extract resources and value from resource rich countries.