No, it depends on the institutions setup by the invaders. In the US, the British never managed to setup an exploitative set of systems, designed to funnel money

No, it depends on the institutions setup by the invaders. In the US, the British never managed to setup an exploitative set of systems, designed to funnel money to corrupt individuals. In the third world, they did. Those systems are what drive poverty. Quite a few places would have been better off without the fucking over by the Europeans, and infinitely better off if given a large capital infusion without conditions (see the Marshall plan and the reconstruction of Japan). The wholesale destruction of life and property in Europe in WW1 and WW2 had huge benefits to people living there now (due to the wholesale rebuilding of social infrastructure).