Yeah, it does mater. I don’t see why he would see Thanos as anybody different then any of the heroes. The biggest genocide ever with a chance of Thanos surviving and living a life of peace and comfort on a far away planet? Plus it does not solve the issues because in all that chaos basically delivers the world to the most powerful.

If they had done that it won’t be for character reasons, just another attempt to tell the peasants that the establishment is important for ‘safety’