Dang it @pry0cc! I was going to bring up the Superman thing!!!
Anyway, the prefix "super" simply means elevated. A "super man" is an elevated man, in that there is some extraordinary, rare aspect about him.
Super -> elevated -> extraordinary -> rare
Is that not hacking? There are 7 billion people on this planet. If all 7 billion people had no arms, yet one day a child is born who has arms, he is seen as abnormal. Yet in his abnormality lies use. A useful abnormality, something extraordinary or rare, or something that elevates an entity to a higher standard, is a super power. In fact, I'd argue that any rare and useful skill or aspect is a sort of super power.
Back to the cook analogy: if there was only one person out of 7 billion who could properly grill a burger, that cook would be a super cook, because his skill, burger-grilling, is elevated and rare.
Hackers are a considerably small minority. Stepping aside from the implicit concentration on computer hacking, hackers are simply problem solvers. They find an unorthodox, previously unused or unknown way to reach some desired result. Hackers are hackers because their problem-solving skills exceed those of the masses.
If you look at IQ distribution, you will see that a small portion of the population is more apt at problem solving. Consequently, the masses have only average (or less than average) problem-solving skills. Lacking the skills of these hackers, the masses also falter when it comes to rationally perceiving the abilities and skills of their intellectual superiors.
The misconception of hacking, a rare skill, one which elevates those who possess it, is what leads to its being referred to, commonly, as a super power. The mainstream is closely-knit with the masses. In fact, mainstream media would logically attempt to appeal most of all to the majority, the masses.
Thus, the notion that hacking is or is not a super power is subjective; it is defined by circumstance.
Here is our circumstance. Most people can't hack, nor can they properly understand what hacking is. This is because so few can perform hacks. Again we see the rarity.
If computer hacking can be used to positively affect either oneself or society, then it is an elevating skill. I have already noted the rarity of hacking.
The combination of rarity and self-elevation makes computer hacking a super power.