Is it the germ or the terrain affecting our health?

Can the "germ theory" be proven and why is it still a theory after so many years?
Are germs part of the clean-up-crew and not the cause of illness at all?
Could the pharmaceutical industry be about keeping people sick and dependant on their drugs (great business model)?
Is Louis pasteur's "germ theory" false? Should we be following terrain health and not looking to kill germs?
Are germs our enemy, or are they part of the healing process? Watch
Do we need to keep searching for truth or should we just believe? Watch