Cash prizes have been big motivators in aviation. The first flights across the Atlantic, the first man-powered flight, the first flight into space by a nongovernmental program — to name a few — were brought about, or at the very least hurried along, by the lure of a big payday. Not to say that honor and accomplishment are not powerful motivators in themselves — but talent and courage are not necessarily diminished, and can be augmented, by a seasoning of avarice.
Technicalities: EAA Contest Aims to Stop Stalls