You should never feel bad for outgrowing the people around you.
There are going to be times when you have to move on to other people that will help you in your next stage of life.
More importantly, you should never feel bad for outgrowing someone around you when it comes to business. Because, they most likely had the same opportunity as you to achieve the same sort of result. If they didn’t make the most of that opportunity, that isn’t on you.