The bottom line is the rich aren't scared of her like they are Bernie. They know she might tinker around the edges a bit but won't do anything too radical. The wealth tax she probably won't even fight for but if she did it would most likely be struck down as unconstitutional. A lot of Warren's base are former Clinton supporters, she has a lot of Clinton people on her team. If Bernie wasn't around then Warren be the best of the worst but with him here it's no contest about who would shake up the fossil fuel, banking, pharmaceutical, insurance industries the most, not to mention the military industrial complex. Bernie's ultimate goal is to divert most of the world's military resources away from killing and towards combating climate change whereas Warren's answer is this https://medium.com/dsa-detroit-newspaper/last-week-massachusetts-senator-and-presidential-hopeful-elizabeth-warren-dropped-yet-another-of-ab8e842eb0b5