Were any of those people really Olivia's friends?
I think the whole point of the movie was: it's actions that count and in their actions none of Olivia's acquaintances were really friends.
Friends help you out when you're down on your luck. They understand when you have to quit a job because you're being humiliated on a daily basis.
Instead, Olivia's "friends" do the following:
- they donate $2m for show to a rich private school
- they spend $90 on sneakers for their child
- they talk about Olivia in demeaning terms when she's not there
- they're ungrateful and prissy
- their marriages are either aimless or disastrous
- they judge Olivia for leaving a "lucrative" job
- they give Olivia gifts from the ALS fund-raiser, but not one of them gives her $2000 (which in real terms, would be a tiny drop in an ocean)
- they embark on a disastrous house-extension project that alienates them from their neighbours and leads to their marital breakup
- they hook her up with an egotistical personal trainer who's secretly dating an ex-girlfriend and who demands his "cut" of Olivia's pay for doing little to help her in the house
The only friend Olivia does have is the fat, sloppy guy, who sees her for who she is and who probably has more money than the others put together. He thinks like she thinks. He's easy. He has money, but he doesn't squander it on looking important or good. He is the title of the movie: Friends With Money.