Hawk made it big because unlike the majority of skaters at the time, he focused on skating and kept a squeaky clean media image.
It made it massively easier to sell him to mainstream audiences.
If someone was to write down all the talented skaters in the scene that went down a path of alcoholism, drug abuse, and eventually, incarceration, you'd end up with quite the list.
It's the same shit now. Why can Johnny Knoxville still get offers for shit and Bam can't? Because Bam can't appear in public sober. You can't sell that to advertisers.