[A Strict Constructionist]

“If the answer is that a lot of scientists cheat, can any be trusted?”

The only sure bet is that hard scientists, by several orders of magnitude, can be trusted over, lawyers, brokers, politicians and other used car salesmen.

[PAR35]

Well, you are certainly entitled to an opinion

Of course, a dishonest broker isn't likely to kill thousands. A dishonest scientist might.