Hi,
I was wondering if someone take a look for me at this phrase: walk away. I look it up in the dictionary, but I still do not get what it means in this context.
Thanks for your help.

(Prioson Break)
Lisa: He was arrest.
Lincoln: For what?
Lisa: Possession of marijuana. I figured he could use some fatherly advice before it is...
Lincoln: Thanks, Lisa. Sit down, dope, uh? Using or dealing?
LJ: What is the difference?
Lincoln: Then what, think it gives you some kind of street cred? You got a piece of the good life, take advantage.
LJ: Look, I get it. The whole thing. She drags me in here, you give me a big speech. I
walk away a changed man, straight A's, Harvard, grow up and be a dentist.
Lincoln: It is better than being here. ...