They way I see it is that taking photos is all about moments, and the very often this "moment" doesn't come out as you wanted it to be. I don't think elementary photo knownledge such as the relationship between shutter and aperture is to be compared to use Photoshop. Photoshop is in some extent use full, for instance to add some colour or perhaps remove the colour, but that's just about it.

Someone wrote that professionals also adjust their shots, well of course, but more or less on a basic level, giving the picture more colour etc.

As I see it there is no point in taking shots if you are going to alter everything about them. The most shots I take come out as shit, all dizzy with no colours.. But that's a big part in taking pictures.

And to be honest, you don’t have to adjust the colour if they are a bit boring, leave them as they are. Be proud of what you actually did with the camera not with your computer.

And just one more thing, the most pictures taken on dry land with no actually difficulty are there no point in adjusting.