The reason superpowers like flight, telekinesis, teleportation, duplication, shapeshifting, mind-control, "phasing", time control, invisibility, and immortality are pretty much the most popular is because all of these provide a way to sustain yourself and even acquire prosperity without having to accrue wealth in the form of cash, coin, or precious stones and you don't have to hurt anyone to do it. It's all deception and stealthy thievery. Flight, teleportation, time control, phasing, invisibility, and even telekinesis (depending on how it's used) can be used to steal anything without being noticed if done right. Duplication and shapeshifting can be used to steal things too, but in order to avoid detection, a number of precautions and other things have to be taken into consideration. Time control and mind control are clearly the best options for getting away with valuable objects without anyone trying to stop you. Immortality is probably the worst option. You steal something and you'll hunted for decades but at least you'll know that no one can kill you so it doesn't even matter if you ever get caught. But this depends on the Immortality. Can you feel pain? What happens should the technologically advancing populace discover your secret and wise up enough to launch you into the sun? Do you have the strength to defy the gravity of 100 Earths? Regardless, the best possible option is to avoid drawing attention to your immortality as best you can.