The “caring people” gradually train the others to behave the same way. And, in this way, the level of caring throughout the entire group rises.
The naysayers are increasingly isolated and must reform or leave because their behaviors are tolerated less and less. There are no sure guarantees that a culture of caring will succeed. Sometimes it takes years to build it and just a few months to destroy it, but a culture of caring is a culture that encourages people who are naturally inclined to exhibit caring behavior to demonstrate it extensively throughout their organization and then in their daily life.