Now, am wondering, if we go for regulations...does it mean we are actually making the Bitcoin movement less potent and possibly compromise the very reasons why it is existing?
It's quite a dilemma. Government acceptance would mean we would be a step closer to mass adoption, but it would also mean there would be government regulations. Governments can't endorse a technology to its citizens and not be able to protect them from it, and they certainly won't allow that much money to flow without them getting a cut. On the other hand, operating from a legal gray area is enough to discourage majority of the population from getting into it.
If we want Bitcoin to spread, then governments will get involved. It's an inevitability, and sadly, we don't have a say in it.
As far as the reason for its existence goes, Satoshi described it as a "system for electronic transactions without relying on trust." That should hold even when under regulation. It's also worth mentioning that Bitcoin wasn't designed to be completely anonymous.