I disagree. Some doctors will attempt new procedures with only a company promoting new tools.
I once saw a surgeon try out new combined cut & staple hardware designed for bowel surgery on a patient's liver, because he had been told it would work. It didn't, and there was a ridiculous amount of staples in the patient's abdomen afterward.
Doctors often become more risk prone the more power they have, and the hierarchy of human medical doctoring contributes to this.