I used to be in group A but now I'm probably in group B. If I compare title/rank between engineering and managerial tracks where I work, there are many, many more people sitting at that rank in management than there are in engineering. The rank confers all sorts of things in terms of pay, chiefly it's used for determining our performance bonuses. I suspect that engineers are just being played by our corporate overlords but I'm not inside of the management beast to know for sure.