But that almost sounds utilitarian. So, I'm picking two Number Two's.

These are the Vestial Virgins. Their duty: remain virginal, and while they were doing that, keep a flame alive. (Something sounds horribly wrong with this culture). To make matters worse, if they lost their virginity or lost the flame (which sounds somewhat contradictory), they would be beheaded or escorted out of the city and burned or something else equally terrible. Irony here is that, well, their statues are missing something.