Power Bin contents spill onto the Master Media

I've encountered something very annoying - I was hoping someone could suggest a fix.

Basically, whenever I use something from my power bin, that media gets 'copied?' to my master media. This is extremely annoying as it's most often just 2-3 different adjustment clips that keep getting repeated over and over. Is there any way to ensure this doesn't happen and the files don't get copied? Or even a workaround where I could preplace them in a new bin would work.

https://preview.redd.it/zftpsdltxrbf1.png?width=519&format=png&auto=webp&s=0cdf22aaa05ca401261750d66e4611da61a4d70e