because its a loaded question to which anyone wiht half a brain should know at least one of the possible answers.. including the OP .. if the OP knows the answer but starts a thread anyway aimed at getting everyone going over the subject then thats a troll..
1) using photo edit software is no different to editing at the development part of film
2) when shooting from the hip (so to speak) you simnply dont have time to setup composition correctly or some other things.. I am a sports photogrpaher and simply dont have time to do a lot before or soemtimes after i take the shot.. thus i try to get it as right as possible but cant always be the case.. i am guessing news photogrpahers and other photogrpahers have the same problem..
I refuse to believe the the OP thinks we all spend half an hr shooting plant pots...he must realise what a big world it is and how everyhting cant be exact...
plus a 2 minute search would have found his answers...
plus i have the nose
hows that?