First of all, you don't appear as a prop next to a foreign dictator for a fee.
Secondly, you don't have a role in a company with a person who tried to sell classified information to the KGB in the 80ies.
Thirdly, you don't go appear a propaganda outlet for spreading anti-American views.
Imagine if, in the run up to the 1960 election Nixon or one of his advisor had an op-ed column in Pravda complaining about JFKs "warmongering".
It's called closing ranks - internal matters should be discussed internally, not being an "useful idiot" (or worse) for the Kremlin.