One of the biggest wastes of potential in Mass Effect 3 was Chancellor Udina.
Early on in the game you meet with him and he wryly points out that with the destruction of parliament and the deaths of the entirity of human leadership he becomes humanity's new leader by virtue of being the last man standing. What thousands of men have dreamed of for millenia he just had dropped into his lap: complete power over just about the entirity of the human species. He had become the most powerful ruler in all of humanity's history... and it did jack shit against the Reapers. He's fully aware of it as well: he's not particularly thrilled about it (mostly because of the galactic emergency where humanity's being turned into zombie robots), but he'll do his best. Udina was skilled at enjoyed the wheeling and dealing, the schmoozin and politicking of the job, he never quite wanted to have power. Sure he'll talk tough to whoever threatens humanity, but it was all for the love of the game and the supremacy of humankind as a whole.
And then he sold out the Citadel, tried to get the Council killed and got unceremoneously shot without us ever learning why. Was he indoctrinated? Was he being bribed or threatened? Did the Illusive Man offer him a better deal? Did he just snap under the pressure? We didn't get any of that, he just died and that was that, end of story.
Early on in the game you meet with him and he wryly points out that with the destruction of parliament and the deaths of the entirity of human leadership he becomes humanity's new leader by virtue of being the last man standing. What thousands of men have dreamed of for millenia he just had dropped into his lap: complete power over just about the entirity of the human species. He had become the most powerful ruler in all of humanity's history... and it did jack shit against the Reapers. He's fully aware of it as well: he's not particularly thrilled about it (mostly because of the galactic emergency where humanity's being turned into zombie robots), but he'll do his best. Udina was skilled at enjoyed the wheeling and dealing, the schmoozin and politicking of the job, he never quite wanted to have power. Sure he'll talk tough to whoever threatens humanity, but it was all for the love of the game and the supremacy of humankind as a whole.
And then he sold out the Citadel, tried to get the Council killed and got unceremoneously shot without us ever learning why. Was he indoctrinated? Was he being bribed or threatened? Did the Illusive Man offer him a better deal? Did he just snap under the pressure? We didn't get any of that, he just died and that was that, end of story.