As powerful as your genetic combination is in determining the outcome of your life, your decisions are more powerful. You will ultimately look like your decisions.
Every time you decide how you are going to feel or think about a person based on a principle or standard that is unbiblical you have gone against God's code of love. Take this rule from me: You have never and will never look into the eyes of a person who God doesn't love as much as He loves you.
The reason some people do not become great is because the met great people but asked the wrong questions. The problem here is not the absence of access, it is bad sense.