It’s very easy to confuse objects of technical fascination with moral virtue, particularly when our world appears bleak. But Musk has demonstrated no motives other than profit and infamy.
2) SpaceX is not directed to save people in earth, but humanity in general. There is a need to generate other organizations for save earthlings, but it is not SpaceX. -But Musk has demonstrated no motives other than profit and infamy-... Sure.
Making cars electric means that we could swap in an alternative form of fuel, like nuclear, without breaking an economy and society that depends on driving.
I think Musk has demonstrated mixed motives, and in that, he resembles most people. His political and geopolitical opinions are regrettable, and if we wants to operate a large social media platform and appease advertisers of many stripes, he should probably shut up. But I doubt he has the humility or self-awareness to do that.