Cost vs. benefit... You and GP deem it as pointless, but educating people about climate change and getting governments to align is worth the net cost. The only way you can get world governments on track with the program is to fly delegates out to these places. Simply existing contributes to GW and environmental impact, but that's a cost I think we should all be willing to accept. Pointing out hypocrisy where none exists makes you and the OP look foolish. That's why you you got downvoted.
I bought a pair of New Balance brand trail sneakers and found the quality I got at Amazon to be disappointing, so I returned and went to a brick and mortar store instead. This being New Balance every shoe has its own number so I knew I didn't want that same version of the shoe. I went back to Amazon with the numbers that I thought were well made shoes and not one was available on Amazon.
There is no royal road to geometry. -- Euclid