I'm convinced if he had a different career he would still be making the world a better place. But politics enables him to have a greater impact. Be like Bernie...
Voting should be the most boring thing you do. Voting should be emotionless and involve studying candidates and their policies. It should be a thing you just do every 2 years, but don't really have extremely strong opinions about. Elections try to make it so emotional, but that's just the wrong way to think about politics in your normal life.
Making it emotional only benefits the media and politicians.