Yes it's really changed the world. It has really helped a lot of people earn more and live better lives
I for one am a testament about how Bitcoin is changing the world, I used to work from hand to mouth and that's all that i did until i came across bitcoins, although i was initially buying and selling only for profits, i came to realize that if i could buy and save without using them, i will make even more profits and that's what i have been doing since.