Let's see if you keep your promise.
Almost every single medical conference and clinical trial doctors attend and perform is funded by drug-companies. And the doctors are then schooled on how to peddle the pharma-drugs, manipulate lab results and make drug-companies richer.
They are taught nothing about better client care, just client longevity, after being addicted to their products.
This isnt private information, and theres hundreds of sources I took 3 min to find:
https://pharmanewsintel.com/features/can-pharmaceutical-companies-ethically-sponsor-medical-education
https://www.docplexus.com/posts/rationalityofdoctorsorganisingspeakinginmedicalconferencessponsoredbypharmacompanies
https://jme.bmj.com/content/47/12/e33
https://www.forbes.com/sites/johnlechleiter/2015/07/21/clinical-trials-part-1/?sh=ef84ceb56dba
Now, since this is clear and obvious, how can there not be a conflict-of-interest when it comes to taking advice from a medical 'expert', when that same expert is making money off of your decision to proceed with their advice?
Its akin to trusting the advice of an automobile 'expert' to sell you a car that you 'need to feel better'... think about it.