Surprisingly also not true. Yes, people go against the grain and it is required to actually make paradigm shifts but they're never alone nor did they build from scratch. It may be few against many but it is almost never one against all. That one only prevails due to support from others. Those names don't shine but it doesn't mean they weren't critical to the advancement of a field
Strong claims - maybe good time to do some homework instead of arguing without evidence?
Galileo was sentenced to house arrest for heresy. Boltzmann died by suicide after lack of acceptance by the scientific community. It's a very long list and something that's been studied, actually.