Not sure why you're downvoted, but the $3M/year total rewards payoff is likely smaller than the corporate administrative and developer time (for review) costs. I.e. if this was a charity it would pay out less than 50 cents on the dollar.
I downvoted because "cybersec researchers" do not in fact routinely make 7 figures. For strong pentester types reporting the typical (real) vulnerability the VRP handles, the median is probably in the low 6's.