Rihanna hasn't accomplished more than Beyonce. As far as s singles maybe. Because Rihanna has 7 albums as opposed to Beyonce's 4. But as far as #1 albums,﻿ first week sales, sales statistics, grammy's, and etc. Beyonce is way more successful. Their net worth's alone validate my point. Beyonce has damn near a $ 400 mill net worth, a $50 mill endorsement deal with pepsi, a partnership with the 1st lady of the U.S., and she manages herself. The list goes on. Rihanna is not more successful