Instead of spending 6 months laboriously doing experiments in a lab, and then a month writing up their results in a paper, researchers can already write a paper in one month if they just invent the numbers without actually doing the experiments. Peer review doesn't check for this. This only further reduces that one month to 5 minutes (+ hours of fiddling with LaTeX templates?). But in both cases if it gets found out your career is over...
However what about generating patents? To get a patent you don't need to have done any experiments that prove your technique actually works :)