Snobbishness was his main fault.

他的主要缺点是势利眼。

We disdain a man for his snobbishness.

我们鄙夷势利小人。

He disdained that man for snobbishness and was unwilling to talk to him.

他鄙视那个势利小人，不愿和他说话。

You have to be burningly aware of your snobbishness, aware of your fears, your anxieties, your sense of guilt.

你必须非常了解自己的俗气，自己的恐惧和同情心。

That is partly because they have more friends abroad (with whom they link via Facebook) and partly snobbishness.

一方面是因为他们在国外有更多的朋友(通过Facebook进行联系)、一方面是出于势利。