Newton’s Laws have the limitation of constant mass and tend to be less applicable when the mass approaches infinity.
Newton’s Laws have been regarded a bible since time immemorial and hence due to these limitation need to be tweaked to cover all possible scenarios.
Similar to this behavioral physics motivated by Carrot And Sticks rule of motivation has survived the entire Industrial Revolution era but fall flat in modern day of the knowledge worker.
For left brain oriented and factory model related work the motivational law still holds good but when it comes to heuristics and aspects where more and more right brain oriented conceptual work is needed , the motivational aspects need a different treatment leveraging aspects of intrinsic motivation.
These aspects have been very beautifully highlighted by Dan Pink in his book titled Drive.