

That is very hard to asses. I prefer to look it like this, what chances is that you will find a partner (like for marry to) out of 100 or so. I do believe, if given equal chance of interaction, you could find a marrying-material partner every 7 or 8 people. Now, in a world of plenty of choices, biases etc, we shuffle through hundreds of people before settling with one… and, even then, still unhappy with the choice for the people we haven gone through yet in our search. Now, that is for me… Chances is you would choose a different person out of these very same 7 to 8 people. Both chosen persons have the same chance of being equally good persons, as the non chosen ones.
No much. He would have to declare if conflict of interest or to IRS. But strong feeling that is not the case. Again, if evidence was there, the FBI and even Trump would be all over with the evidence. This guy, probably had no even Confidential Security Clearance (lowest one). The only thing I can think of is industrial espionage but those are brought by the injured party and goes to a normal judicial channel… nothing indicates that is the case here.