I really love fine craft beer. But can still sit down happily in a cheap pub and drink a jug of Victoria Bitter. It helps greatly to have entirely distinct mental categories in such cases.
VB, Carlton, Budweiser, or any other mass market lager isn't bad beer. It's not good beer, there's nothing remarkable about the stuff, but it's not like it's vinegar or has massive technical flaws. The quality control and consistency of mass market lagers is something that many craft breweries and brewpubs could only dream of.
There's plenty of craft beer that I've drunk that's distinctly different from batch to batch, their consistency is all over the show. But I know that if I get a stubby of VB, it's going to taste exactly like VB.