It’s a carry over from all the bank mergers from the 80s (and probably earlier). You never want to cut someone’s title, so when dinky 10-branch bank gets bought by JP Morgan, the VP just stays a VP even though you can’t possibly make them the second-most-powerful person at JP Morgan. With enough mergers you get a critical mass and you have to create a structure where all the current VPs and everyone around their stature get the title but it officially loses any meaning.
It’s a carry over from all the bank mergers from the 80s (and probably earlier). You never want to cut someone’s title, so when dinky 10-branch bank gets bought by JP Morgan, the VP just stays a VP even though you can’t possibly make them the second-most-powerful person at JP Morgan. With enough mergers you get a critical mass and you have to create a structure where all the current VPs and everyone around their stature get the title but it officially loses any meaning.
Tldr I blame the Savings and Loan crisis