What if humans won't ever become "better"? Will ever lions change, or cows, or sharks, or dolphins, ...?
Humans who evolve don't come back here.
Anyway, "better" is such a relative term. People kill each other because they know better, and they want better.
Can anybody say that
Einstein was a pseudo-scientist for his contribution to the atomic bombs used by US in 1945?
History is full of people fighting with conviction for a cause, attain it, to find out that it had regrettable repercussions they never thought of. Einstein said "I never though of that!" and "Had I known that the Germans would not succeed in producing an atomic bomb," he said "I would have never lifted a finger."
We all make errors, then are indulgent with us, but unforgiving with others.
Your scientist is my pseudo-scientist ... My fair reporting is your fake news ...