Privacy is privacy - you don't know how important it is until you don't have it.

The main payment processors operate a mafia of sorts - it's a closed shop - tx fees are fixed and determined by them. One aspect of bitcoin is that is allows the person sending a payment & the person processing that payment (the mining pools) to negotiate the price. The theory being that transactions with a better tx fee will be included in blocks quicker than those that don't.

By freeing up these aspects of the systems we use to send & receive payment - you allow other forces to come into play.