For now PIVX helps to solve problems with privacy and with high fees that bitcoin blockchain has. I don't know what is going to happen with it's development in the future. If bitcoin will not fix high fees issues people in third world countries will not be able to use it because trasaction fees are now as high as their daily income. The only way for them to make online transactions right now is cryptocurrency that runs on a blockchain with inexpensive fees e.g. PIVX. I think pretty soon we will be able to exchange PIVX directly to fiat. Besides there are 2-3 billion potential customers for cryptocurrency with low fees. This incentive alone should be enough.