Unfortunately, as the salaries & benefits for all Diplomats & servants of the UN agencies were set in stone at the Breton Woods conferences in 1946, much as we can, do & did disagree with the payments being made, as noted by the reporter, as below:
For many years critics have complained that IMF, World Bank, and United Nations employees are able to live large at international taxpayers' expense.
During the 1944 economic conference at Bretton Woods, where the IMF was created, American and British politicians disagreed over salaries for the bureaucrats. British delegates, including the economist John Maynard Keynes, considered the American proposals for salaries to be "monstrous", but lost the argument.
Without a total renegotiation of the entire UN charter, with all the attendant bluster that would create - any multi-national treaties having taken many decades to even reach a memorandum of conscensus, and the deeply entrencheed snouts in the trough, this will never happen, much as it desperatly needs to be.