I guess I meant 'embody the principles.'
As manny have mentioned, there are a lot of pressures on officers today. Not to get the whole firefighter - police officer thing started, but at least in my area we still staff fire departments like Mrs. O'Leary's cow is still kicking over lanterns, despite advances in alarm technology, building codes, etc. Meanwhile, it seems police departments have been given more to do, without significant increases in manpower.
As a result, in most medium to large-sized departments officers essentially go from call-to-call. They have little time for 'beat management' the process of getting to know folks other than offenders and their victims and developing relationships with residents, businessmen and clerks, in order to better serve them, and the community.