IMHO, the final scene in the movie shows Alex's priorities have changed: he formerly enjoyed being a criminal who operated outside of society, but now he looks forward to a more socially acceptable lifestyle -- while still retaining some of his wild nature.
Note the scene appears to be a fantasy Alex experiences just after he agrees to play along with the government's explanation of what happened to him. In effect, Alex has just made a deal with society in which he will be rewarded if he controls himself to some extent. In a sense, he has matured.
Accordingly, this change is evident in the final scene's fantasy depiction of a man (presumably Alex) having sex with a woman as a crowd of well-dressed "normal" people watches and applauds. Note how Alex's fantasy-life has changed: The sex seems a bit wild, but it is monogamous (contrasting with an earlier threesome) and it is consensual (at least in comparison to earlier rapes) -- which is apparently enough to earn the approval of society (versus the condemnation of society that Alex used to earn).