the vampire mythology is very interesting. as you say, can't look at themselves (although is the meaning the have no ability to, or don't want to see?), survive by sucking the life force out of those around them, can't survive examination in light, always operate in the shadows.
pretty much sums up the worlds power brokers be they private or political.

dunno about the garlic. no idea where that fits in. might watch Lost Boys again. love that movie.