Do you think there is even a need to fight plagiarism?

I understand that content creators will be turned off if they see others profiting from their work but the community will detect plagiarism and act accordingly.

As long as content is still new to most of the community why should it not be rewarded for being reposted? I understand that etiquette teaches one to despise reposts, but I think the design of the platform allows original content to be rewarded most highly. Reposts will only be rewarded by those who missed it the first time around and so on until the community no longer rewards the content. A creator who turns out regular original content will enjoy the most rewards.