Nоrdhоlm Systems' security leаd pulls tоgether dаtа across the company's dozen agile teams and finds a pattern that puzzles her: activities the teams use most often are, on average, rated by the very engineers using them as only moderately impactful on security — while some activities used far less often are rated as highly impactful. A colleague asks what would cause usage rates and perceived impact to diverge like that. What best explains the divergence?