There is a great deal of politics in the decision of what things to use in hospitals. Let me give you an example.
A hospital had a problem with too many patients getting bedsores. The administartion of the hospital instituted a major program to solve this. They hired many more nursing assistants and had an extensive training program to make everyone conscious of the need to turn people frequently to avoid this. The money spent was made up from needing fewer high-tech beds. They got so good at the program that the bedsore rate went down to almost 0. They had an accreditation survey and were told that they were underreporting bedsores because nobody could have a rate of 0. New administrators came in and looked at where budgets could be cut. One place was less training for the nursing assistants - get 'em out on the floor sooner. The sales rep who rented the high-tech beds to the hospital was told by his/her bosses to get revenue up - or else. So there was a big outing for the doctors (like playing golf with top execs of the company) where the benefits of the beds were mentioned. Well, guess what. The adminsitrators got the desired budget cuts. The patients didn't get turned as much. The company rented more beds. The surveyors were happy to see a "reasonable" rate of bedsores. Everyone except U No Hoo lived happily ever after.