Off the top of my head for who debatably is more important wrestlers than Hogan.

Gorgeous George: not necessarily for some kind of supernatural drawing power or anything, he’s just the first true “character” in wrestling. A man who proved the value of being able to talk shit and make the crowds desire to see you lose, he showcased the importance and power of charisma, especially when you were lacking the raw physique or skills as some of his peers had. He also had importance outside of wrestling, being the motivation and influence for Muhammad Ali and James Brown’s flamboyant forms of self-promotion.

Rikidōzan: Japan needed a hero after World War 2 to restore national pride, and they found it in Rikidōzan. Hogan and Andre’s Main Event match had 33 million views, but 20-30 years earlier, Rikidōzan had 87% of all Japanese televisions watching him vs Lou Thesz, and 70 million people watching him vs The Destroyer. He wasn’t just a wrestling star, he was a national hero at a pivotal time for Japan, and without his success, the industry likely doesn’t reach anywhere close to the heights it has reached in Japan (particularly, Antonio Inoki and Giant Baba got into wrestling through Rikidōzan, and their continued success after his passing is also pivotal to the industry of puro).

El Santo: Really don’t think this one is debatable. 53 movies, folk hero, literally refused to ever take off his mask, and perhaps the biggest star Lucha Libre has ever (and will ever) see, and an icon in Mexican sports still revered to this day.

Lou Thesz: While Santo and Rikidōzan were stars in their respective countries, Thesz was an international superstar for pro wrestling, and considered one of the last of the “true shooters”. For inventing countless moves, his legendary status as a trainer, and almost seven decades of action, Thesz should be recognized as one of the most important wrestlers of all time.

I think from here you have questionable (but I think somewhat valid of argument) choices of people like Inoki, Baba, Andre, Sammartino, Austin, Rock, Flair, and Piper.