Duty's called Duty because of her "Duty" to be a rolemodel, an artist.
I remembered her saying it was intended for us fans.

Like... a guide on which to live by.

Good observation, especially about the lighting in the covers. However, I highly doubt there's a connection; it's merely a coincidence. ;)

I like the analysis you did, though I don't think it was an intentional effort. However, I won't argue against the symbolism.

Sometimes I think people on this forum are taking things too literally/don't look at anything but a surface level, and misunderstandings come up.