There's this thing over in TV Tropes called "Reed Richards is useless", the idea being that despite all the overblown superscience avaliable in superhero comics, none of the spectacular advances made will ever impact regular folk due to the restraints of keeping the setting as close to reality as possible. This isn't the case in every series (the DCAU did a good job in keeping ideas around once they were invented, the process that created Mr Freeze being replicable, for example), but Marvel, with their long time ethic of being more "real" than DC's output it's particularly noticable.
One way that this presents itself is in that most stock of end goals for science: the Cure for Cancer! Thing is, there are numerous actual cures for the condition knocking about in the Marvel Universe, but unlike the Reed Richards is Useless trope, the reason why they're not available isn't because they're too impractical or expensive for the public market, it's... well, the people who discovered it are kind of tools.( Read more )