As Athos is telling us in the image there, if we took take the time to understand our dogs behaviour, rather than trying to fix, control or suppress the behaviour we want to change, not only will we be happier, but the behaviour will be much more simple to alter at the root cause.
Quite simply, if you suppress a behaviour, you do not tackle the cause. This means that when you have "corrected" it, you've just tackled a symptom, not the cause. This can lead to other behaviours appearing which we will also not want to have our dogs doing.
"Nothing Taught By Force Stays In The Soul" - Plato
There is always a better way of doing things, and the more we gain knowledge on canine cognition and behaviour, we must update our methodologies and skill sets to suit.