If you care to read comic books or watch films from Marvel and Dc etc there is a common theme that passes through them. In most instances the creation of superheroes comes from something happening in a lab. It’s usually an accident that has happened and it creates some kind of useful human mutation. There are exceptions, Thor for example is just a God anyway and others are aliens, like Martian Manhunter, who shows up with them in the first place. Some of these characters are even created by chemical spillages. If they’d had some Spill Kits from https://hydepark-environmental.com/spill-response/spill-kits they might have saved themselves all some trouble.
Lab safety is a primary concern and the things that happen are truly fantastic and impossible. This is also true of the results. For example, when Peter Parker is bitten by a radioactive spider the after effects of gained strength and “spidey sense” (which he generally ignores) plus the ability to walk up walls is not a common outcome. As Harold Wallowitz says to Raj Koothrappali when it turns out a lab assistant has been bitten by a radioactive rat “All they got was a plaster and tetanus shot”.
This use of the crazy lab accident is pretty much the fault of Mary Shelley. She starts the mad scientist/twisted lab situation with her Frankenstein novel back in 1818. It started a trend that is still being used today to explain the creation of villains and heroes alike.