Lichtenstein’s use of comic art and styles made him one of America’s most famous pop artists, but some comic artists have a bad taste in their mouths
https://www.smithsonianmag.com/smart-news/comics-behind-roy-lichtenstein-180966994/From the article:
Through appropriating the techniques and styles of comic books, a product considered decidedly juvenile and frivolous, Lichtenstein found a way to unite "low" and "high" art in captivating compositions.
However, as Lichtenstein enjoyed worldwide acclaim and his works continue to sell for tens of millions of dollars two decades after his death, comic book artists have voiced frustration at having their creations and genre appropriated with little credit and no money.
The claim of ripping off artists with no compensation reminds me of some of the complaints made about artificial intelligence.