D&D 4E Slight Rant on 4E FR So Far and Where It May Go [SPOILERS]

[Testament]

If Elminster and the other goodies decided to go across Faerún and destroy all the 'bad guys', burn Zhentil Keep, Hillsfar and other places of evil to the ground, crush all opposition, installing rulers who will 'help' the populace, preventing anyone else from speaking out against them... what would that make them?

Heroes. And I resent you loading the question with the bolded part. That these people with enormous power HAVEN'T dealt with such issues that are within their capabilities is a failure on their part.