Are Government Health Agencies acting in the best interest of the public?

A large, double-blind, randomized controlled trial (RCT) concerning a xylitol-containing nasal spray as a possible COVID preventive or treatment was published in October 2022. There were 62% fewer infections in medical workers using the spray compared with placebo. A comparable product, Xlear, is available in the U.S. The FDA has failed to carry out requested clinical trials, and the FTC has filed a lawsuit against Xlear for allegedly claiming usefulness against COVID.

Evidently, I am missing something here, as I don’t see the actions/inactions of either of these government agencies, to be genuinely in the best interest of the public.

https://criticallythinking.substack.com/p/federal-agencies-again-resist-a-likely?