Lifestyle Whore
A person who does anything to achieve their lifestyle goals. A person who will leave their partner if they don't provide a high enough lifestyle like their rich friends, who will abandon their loved pet because it gets in the way of their "good life" and who puts their fancy lifestyle interests ahead of their children too.
She left her two young children home alone tonight so she could be with her boyfriend and attend the white party... she's a lifestyle whore!