Yeah, it would definitely not be my intention to try to sneak into the live event illegally. I would simply be playing the satellite to earn money directly, not try to win entry into a bigger event. Obviously, I would have to be playing a satellite that allows unregistration for T$ or cash in the first place, but presuming they did, I see no reason why I couldn't just play the satellite.
In fact, the hypothetical that made me post this was the World Series of Jackpots on America's Cardroom, in which you can win a $12,500 package to the
wsop. But the $12,500 comes via an $11,500 deposit to your account plus another $1k upon confirmation that you actually played the ME (I guess this is because they can't register you directly, but they want to incentivize people to actually play the event as opposed to doing what I'm hypothetically thinking about doing, which is just bank the dough and not play the target event). So if I won, I'd just take the $11,500 cash and forfeit the extra $1k. I see no reason why they wouldn't let me. Of course, I'd ask their support to be sure before playing.
Thanks for the answer.