Absolutely this. What are your "smartest" friends saying about the billions of dollars invested and spent by other really smart individuals in developing these vaccines in the first place? I bet world class biologists and investors aren't doing it for the fun.
PS: If anyone is curious about the "real thing", I'd highly recommend you look up hospital documentaries on COVID IC units. There is one - unfortunately German only - called "Charité intensiv" which quite drastically showcases the extent of what you have to deal with when contracting COVID. Let me tell you it's quite a bit more than myocarditis.