In the original Dawkins sense of the word, this is explicitly so. Strictly speaking, memes are just ideas that use us to replicate. A worldview is an idea. Pogrom ergo sum, so to speak.
Exactly. Spreading and replicating like viruses across host bodies. And just like certain viruses, some can stay dormant for years, never fully going away - e.g. "The Game" (sorry not sorry). :p