Educating people is the last thing you'd want to do if you're wanting to 'get rid of their hindances'.

Every revolutionary you can think of (i.e. Gandhi, Castro, Ho Chi Minh etc.) had privileged educational opportunities usually by the very people they sought to ultimately overthrow.

In Canada specifically, there was actually a fear that providing education would give aboriginals too much power.

The 'hindrance' towards resource extraction didn't start to happen until fairly recently, when educated and literate aboriginal groups were able to make proper legal challenges to certain things, particularly their right to 'govern' the environmental aspects of certain areas of land.