Why I can't simply "trust the science"

A new study shows that mask mandates were essentially ineffective. The lab-leak hypothosis is being strongly favored by a broad consensus. The impact of the actual corona virus seems less and less fatal, while draconian lockdown measures are proving worse and worse for individuals and society as a whole. And yet, throughout the havoc of the pandemic, we were told to "trust the science", as if science were some sort of authoritative monolith, not to be questioned. Ironically, that's the very opposite of what science teaches us to do. And in fact, there were plenty of scientists who doubted Faucci's policies, but who were effectively silenced by a mainstream narrative. What the hell happened?