With all the will in the world why has Museveni failed?

In countries with true democracy where citizens hire and fire their representatives through the ballot box and/or public opinion, Museveni would have resigned or forced to because he has failed to deliver on his promises. Museveni cannot step down in large part because he is not sure what will happen to him once he has lost the immunity that goes with the presidency.

Museveni has had all the support at home and abroad that he needed to succeed. Why has he failed so badly? Everywhere you look domestically, regionally and internationally you see nothing but failure. At home, the diseases of poverty and environmental degradation are undeniable, at the great lakes region level, he has been accused of removing governments, his troops of committing genocide against Hutu people in DRC and plundering DRC resources; at the AU level he has quarreled with Qaddafi and at the global level his star has faded.

Discussions with people who have known him for a long time have shed some light. First, it appears that he set high ambitions that were not matched by his capabilities. Apparently, he deceived himself that he is intellectually superior to Ugandans because of his connections with the Aryan race of Europeans and therefore did not need to listen to people of lower IQ.