You're missing my point Eagle, showing up late is fine, just do it like you mean business when you do get to the gate.
Pax don't give a hoot about CC so trying to impress them by showing you are in CC is pointless.
CC is about complying with your contract. Deliberately causing further delay in full view of pax is not CC.
But that's just my opinion, yours is obviously different, keep doing what you do and see how it works out for you .
As someone else said, it could have been that the A/C was not yet on the bay.
Same thing applies, at least look like you mean business when you arrive at the gate to a DELAYED flight ...