It really doesn't take any courage to talk about how big and bad the billionaires are, or to offer things for free to people who think it makes sense to get things for free.
In general, saying things and trying to win political power isn't a mark of courage. But saying things that attack the mega rich is really like the safest thing you can possibly say.
If you tether yourself to how things actually work and offer realistic solutions that don't read like a fairy tale to people who are upset, that might be a little courageous.
Blaming things on the rich is weak and super safe.