It really comes down to a certain level of integrity. Either you have it or not. Just because the client doesn't know about it, doesn't mean that you should lolly gag around and wait until the next scheduled release to fix a bug.

In fact, the motivation for working harder and quicker should be to fix the bug before the customer finds out, not solely because they already know and you have to get it out the door. This kind of attitude is exactly why software has become the bloated, inefficient code it has.

I long for the days where your salary is based on the quality and accuracy of your coding. There would be far fewer "engineers" out there to compete with in this market.

Just my 2 pence.