I have taken down the original text of this post at the request of my colleague who had the courage and audacity to let me post his detailed comment about how he works “under the radar” to change things in his company.
I had posted his comment originally with his permission, of course. But, apparently, in his country, “it’s illegal to harm [one's] employer’s business” and it can reasonably be considered doing harm to express a low opinion of your own company’s behavior, even if you are dedicated to improving that behavior. Dirty laundry in public is arguably bad for business, if your business involves telling people that you’re a trustworthy expert, and your laundry says otherwise.
Of course this is understandable. Working under the radar generally means not being public about what you are doing. Therefore, as much as I prefer the clean feeling of working ON the radar, I wish him good luck with his mode of influencing a big, commercial, ceremonial system.