“Dr Mandrola, you are a leader in the area so we would like you to be on our speakers bureau. Of course, you are reimbursed for your time”
Now, not all that is sponsored by medical device or drug companies is corrupt. Far form it. Leaders in industry, like JNJ, Medtronic, Boston Scientific, Pfizer and many others have enhanced our ability to doctor, and in doing so have enhanced the lives of patients. Good on them. But they are for profit entities with boards of directors, and shareholders who expect profits. Employing opinion leaders who nearly always reside in the cocoon of academics influence doctors who prescribe their products. I think this is called marketing.
Beware, you seekers of knowledge on the vast frontier of the internet.