Your post would make sense if an earnest devotion to truth and honesty were the only thing that drives scientists. It's not.
There's also something called "funding," which Must Be Assured Above All Else. To go for the kill on, say, Global Warming, would risk the funding of everybody else. Best to be quiet, when one's own livelihood is at stake.
There's also that other little item, called "politics," which we saw most clearly during the "Star Wars can't possibly work, and it will cost trillions" festival of the mid-80s.
We cannot pretend that scientists are not also driven by those sorts of things.
Sure, they are still trying to ignore Goedel out of existence. The Blue Brain project continues anyway.
Being somewhat critical here might help see what is going on. Dedicated to finding The Truth is not the same as being truthful and honest.