Although that was initially my feelings (when an account steals my content, I would view their account size and get pissed when they had more followers than me) but now I feel equally pissed at every account that steals my content. If it's a legitimate account that's sharing it i'm fine, but if it's an account that only shares other peoples posts, I report and block them. They shouldn't be able to make money from other peoples posts.

Instagram should at least attempt to do something about this issue other than relying on users to report them. All of these accounts have similar patterns on how they operate. They shouldn't be too difficult to find.