Your brain should be telling you that this guy is one of the top cancer specialists in the world so what he has to say about a particular vaccine/product is of importance. He's earned more than a little credibility.
If you're going to be accusing folks of wrongdoing, who are as accomplished as this guy, you'd better have something more than feelings for proof. You can't prove conflict of interest because you don't understand what it is or how research is conducted in this country. Given the fact that you have no knowledge of the industry or its processes, it is impossible for you to know what is considered ethical and what is not. This man is one of the best in his field. He has HUGE credibility when it comes to the safety and efficacy of this vaccine. Apparently, for some unknown reason, you don't like that fact so you scream mindlessly about some alleged conflict of interest that exists only in your head.
It's really sad when people who don't know on which side their bread is buttered complain about the people who are dedicating their lives to curing complex and heinous diseases like cancer.
Sorry, I’m not going to take an argument from authority in the context of a culture where the office of the President himself is a festering pit of lies and corruption. Sell me another line.
The conflict of interest is clear. That you are choosing to dismiss it is the issue at hand, not me point out that it exists.