I've got the C cert on all my types, used to be a check leader too for a previous company I think it earned me about a grand a year more than senior supes - really worth it.
The C license is only an admin responsibility - ensuring all the check cards are closed down and signed up IAW company (EASA) regs, it in no way mitigates the LAE's signing the CRS on hangar cards from their responsibilities or adds to your much.
It's no big deal what so ever, I rarely eat cornflakes but I'm sure it came with a packet at some point.