Well, presumably a job well done is the primary motivation, or perhaps the recognition of your peers. It is only when you have previously achieved importance and are now in a position to have face to lose; here is where shame can come into play.

Constructive criticism is helpful and should always be the first stop on the train. But if you should already know better, or that ground has already been well-trodden, then it just sounds patronizing. This is where being told to shape the fuck up is the kind of message I would expect to receive.

What would be even worse is being ignored or shunned.

You aren't Jewish, are you?