People act as if the the words "plagiarism/stealing" are interchangeable with the word "influence". Every idea came from another idea, truly there are no original ideas left under the sun. No music came from just absolutely nothing. Every band/singer/artist took inspirations from someone to make whatever they do/did. This goes for literally everything. Studying where a band got it's influences from is important to understanding any band. That is what makes music great. It's a big community of people gathered around their love for the art, sharing ideas and sounds with each other. Of course, blatant copy and paste and claiming it as your own is plagiarizing.