Elvis Costello explains that biting riffs is "just how rock 'n' roll works".
In response to Billy Edwards' Tweet: "This is fine by me, Billy. It’s how rock and roll works. You take the broken pieces of another thrill and make a brand new toy. That’s what I did."
He points out that Bob Dylan's "Subterranean Homesick Blues" is very similar to Chuck Berry's "Too Much Monkey Business", but Dylan never got shit on.
OP also knows that Escape Club's Wild Wild West has a very similar riff to Pump It Up, but doesn't remember anyone really caring too much about that either.