Who made her career?

It’s interesting how from about 2011 to 2019, Jennifer Lawrence was the hottest star in Hollywood, but what caused her to become Hollywood’s “It girl?” She wasn’t a Nickelodeon or Disney star, and her biggest role before Winter’s Bone was being the daughter on the Bill Engvall Show, a redneck comedy series. She was born and raised in Kentucky with no connections to the film industry. So, how can someone who comes out of nowhere become the biggest star of the 2010s? Also why would Hollywood want to promote someone with her characteristics, personality, and background as the girl for both guys to want to aspire to attain for a girlfriend/spouse and girls to want to be, since that element is key in Hollywood promoting someone to stardom?