There are many people who never make it because they grow up under the wrong regime or in a place where no one will publish or publicise them.
For what it's worth, a lot of people think the Nazis undermined their own war machine by persecuting Jewish scientists.
They absolutely did, and German science never recovered its former dominant position after Hitler.
People don't even realize that as late as 100 years ago, Americans would travel to Germany for first-class university education. Harvard was good for networking and decent for overall education, but top notch science was done in places like Heidelberg.