What does "rebalancing of the scales" mean in this context?
This is from Jennifer Aniston's speech:
"I've thought about myself as strong, but powerful, not really. It's a distinction I've been thinking a lot about lately, since the word power, and its counterpart, abusive power keeps coming up in light of what is happening in our country, in our industry, **a rebalancing of the scales**, i guess, you could say..."
I don't understand what exactly "rebalancing of the scales" means here especially because I'm not sure about the meaning of "scales".
Thanks in advance.