Well I'd argue that there was no such thing as 'friend' in the mind of people hosting that event. It was clearly abusive mobster negotiation tactics, immoral power play and profit extraction.
One party greated the other cordially in a suit. One showed up to meet the President of the United States in leisure attire! One had made an agreement with Secretary of State and then reneged on it publicly. This same individual then decided to threaten the President of the United Sates. Who exactly was acting like a mobster?
There is nothing immoral about getting paid for services or products. If you don't like it go somewhere else. Why is it that everyone expects hand outs from America but never once ask what can they do for America? It is Ukraine who is exploiting the American people for free arms. Finally an America stood up to their ridiculous behavior, the petty dictator was kicked out of the White House.