I consider it bad luck, bad karma not to meet up with your biological parents if they request it.
I would do it for them as much as for me. We all come from somewhere and from someone, this is why we have family trees and why some people spend a lot of time maintaining them. Family tree research is big on the internet.
Steve Jobs refusal to see his bio-father may have redounded on him. Too stuck up to see his biological father, does not look like a winning formula to me
I have several friers who were adopted.Some want to meet their bio parents while others would only like to know their medical histories and would prefer not to have actual contact.I think it depends on each individual what they want. I know one lady I when I lived in NY who after meeting her birth family came home and thanked her Mom profusely for adopting her and giving her the life she had because there were 7 other real kids with very dysfunctional lives with her birth Mom.