Curiously A Christmas Carol was what started the modern retail-centric rites of Christmas celebrations: prezzies, house parties and feasts.

Also at the time Dickens wrote it, industrial bosses were grudging about making it a work holiday, like Scrooge, often mandating reporting for work and penalizing those who didn't.

These days we might add a spin on it, that the ghosts are of bosses past who failed to mind the welfare of their workers, only to be brutally turned into the ghosts they are today, and finding the afterlife not to their liking.

Here we come a' wassailing, motherfucker

Reminds me of my favorite verse (from MST3K):

If the person who you sing to can't provide the wassail

Then you are entitled to his debit card and PIN number

Love and joy come to you, unless you can't provide the wassail

Then severe financial penalty shall come to you

Then severe financial penalty to you