Most of the world has not yet realized the importance of privacy. When that happens Monero has as good of a chance to replace bitcoin as any alternative in assistance today. Of course other alternatives could come along before the masses rush to privacy tech. It will be fun to wait and see what happens!
"Every week or two, from now on, will see new privacy disasters, each worse than the last. Every week or two, from now on, will see millions of people who suddenly wish there was more they could do to protect their privacy."http://www.theguardian.com/technology/2015/oct/02/why-is-it-so-hard-to-convince-people-to-care-about-privacy