An expert with a 50% error rate is a coin. A scientist with a 50% error rate is still a scientist, and perhaps an eminent one at that.

When tens of "expert" climatologists with an error rate of say 5% in their field testify in support of a policy that eliminates thousands of expert miners, geologist, etc. with error rates of say 0.01% in their fields, you're going to have resistance. That's a huge perceived inequality in terms of ramifications and consequences.