the only way to fix that is to improve education everywhere. that includes moral education.
Education is probably quite important, but it seems there are other important components.
Are there any countries where level of corruption is much lower, adjusted for education?
I'd wager most high-trust countries would do better on measures of corruption, adjusted for education levels.
science and arts is not enough. we also need to learn to care for each other, to be kind, generous, not hurtful, treat others with love and respect and many more virtues...