That’s the beautiful thing about science: You do not have to (and should not) trust any individual. And even if you don’t trust “the consensus” of “the scientific community”, you can empirically verify yourself.
Can ordinary civilians feasibly measure, for example, global trends in mean temperature without relying on the data of others?
Are you going to build a competitor to CERN?
There are many things that cannot be feasibly verified empirically without access to rare resources.
Once you move from abstract to practical - like say having legislators or regulators make rules based on The Science, or relying personally on more facts than you have time to independently verify - yes you do need to have trustworthy people.