Regina is an example of extreme narcissism. A grandiose sense of self-importance, fantasies of unlimited success and power, requiring excessive admiration, a huge sense of entitlement, inter-personally exploitative and lacking in empathy.
If in First class she grows to realize that she is beautiful in her natural form, it is in Days of Future Past that she forges her identity.
What she achieves – and surely what all girls should aspire to – is an offer to join a prestigious law firm (where no doubt she will take an 80 hour work week and still have time for exercise and manicures) and a proposal of marriage. Splendid.