One massive benefit of social media, particularly Instagram, is how many young women are motivated to build up their bodies like this. They see all these insta famous hotties with perfect asses like these girls and aspire to look like that to bring all the boys to the yard.
On a side note, I'm not sure if you have actually ever seen women like this in real life but pictures don't do them justice, seriously. You honestly have to see girls like this in person to gain a true appreciation for how beautiful they are. Another thing is that these women overall live a healthy lifestyle so they will age very well, be healthy and sexy for a long time. At the gym I go to now there are actually a lot of girls like this, in regards to their bodies, and they are god's gift to men.