Read again your post. what is Peter saying? "Anybody who questions us is a ridiculer and is to be dismissed."
Yes Pear
God did give us a brain and there are many brilliant individuals including scientists who are called to Christ. People like Francis Collins head the of the Genome Project and many more prominent scientist now and throughout history but Peter is saying quite clearly that it is the heart that is in question,
ridiculers will come with their ridicule, proceeding according to their own desire
It is the fallen nature of man to rebel against God man chases his desires not those of God they are alien to him.
Romans 3:10
As it is written: "There is no one righteous, not even one;
The Apostle Peter is exposing the heart of the matter that drives the mind.
But ultimately those who place their trust in their intellectual or physical might and turn their ways from God will be left with an emphatic lonely and barren destiny.