11 With what advantage to your treasury are the prerogatives of the Vestal Virgins diminished? Is that refused under the most bountiful emperors which the most parsimonious have granted? Their sole honour consists in that, so to call it, wage of chastity. As fillets are the ornament of their heads, so is their distinction drawn from their leisure to attend to the offices of sacrifice. They seek for in a measure the empty name of immunity, since by their poverty they are exempt from payment. And so they who diminish anything of their substance increase their praise, inasmuch as virginity dedicated to the public good increases in merit when it is without reward.
Source: Memorial of Symmachus (New Advent)