That's already true of doctors. The barriers to entry to being a GP are lower than those to being a neurosurgeon. Like building rails websites has lower barriers to entry than writing code for the Mars rovers. In fact, if you so much desire, you can set up a homoeopathy practise without a degree in medicine.
In my mind, brilliance is associated with (successful) innovation. One can innovate in two basic ways, in methods or products. For example, Rails is an innovation in method. The webapp itself (however it was written) is an innovation in product. Both kinds of innovation do occur at JPL (they've created a substantial toolset around Eclipse, actually, and are pushing into Cloud computing in a serious way), but the nature of the space-based/rover projects (years between "qa" and "production") means that those programmers are prized for their high skill and low tolerance for risk.
This isn't something to be happy about. We trust those that practice medicine have been properly trained and rely on a well established body of knowledge. Human lives and health are placed in the hands of this person. Much different than someone building a rails site.