Find your tribe in a Sea of Creativity
Simon Petrocov has two hearts, and the very existence of this fact implies that Golb possesses an infinite glitch, specifically when it comes to organs. Let me explain my horrific thought process.
During a spell, Ice King, trying to "steal Princess Bubblegum's heart," accidentally brought his own heart to life. If you watched the early seasons of Adventure Time, you probably remember him. Ricardio, the smooth talking heart.
But the one thing I didn't realize was that Ricardio actually never fused back with Simon, meaning that up until Come Along With Me, Ice King literally didn't have a heart. But once he was broken down by Golb, presumably, he was reset back to a time where he did have a heart. Because yknow, humans need those.
So basically, my thoughts are that it'd be insanely easy to harvest organs in Ooo if you ever came across Golb, and yknow, could survive that encounter without being zapped into puzzle pieces.
Maybe it only worked for Simon because Betty wished to have the power to be able to keep him safe at any cost, and maybe that means Simon literally doesn't have a heart anymore, and my whole theory is debunkable... But if that IS how it works: infinite organ farming.