Are some people better than others?

yes, and no. It depends, we are all created equal by basic human Characteristic Our morals and education makes the difference between us. Education is priceless but without common sense is worthless. Some are better suited to do a job than others, but that does not make them a better person.
A man cheats on his wife, ...I don't. Am I better Yes.
My best friend can out cuss any man on earth, I don't cuss. Am I better no, because my best friend has a heart of gold.
Always do the best you can at anything you do and you will be a better person as long as you try to do your best.