The Bible reveals why such teachings as evolution are popular. It says: There will be a period of time when they will not put up with the healthful teaching, but, in accord with their own desires, they will accumulate teachers for themselves to have their ears tickled; and they will turn their ears away from the truth, whereas they will be turned aside to false stories. (2 Timothy 4:3, 4)
That verse was actually my sig for a while. I tend to view it in the opposite terms you do, as in creationists follow their itching ears and follow those who will have them deny the evidence and prop up their ego and pride, diminishing their humbleness and humility. But that doesn't apply to all creationists, just some, in particular many who 'debate' the issue for extended periods of time.
Although evolution is usually presented in scientific terms, it is really a religious doctrine. It teaches a philosophy of life and an attitude toward God. Its beliefs are subtly attractive to mankinds selfish, independent spirit.
Evolution is simply a scientific theory, it states what happens in nature, that is all. Strictly as a scientific explanation, it says nothing of how we should live our lives, if there is a God or not, nor is it a philosophy on any level. You could turn it into a philosophy, but once you do that you go beyond that which is science. Even Dawkins believes that to take evolution and turn it into a philosophy is a grave mistake and should not be done. According to him, we should learn all that we can about evolution so that we can rise above the harsh environment and make living possible and enjoyable for everyone.
But even if we take the most evil philosophy we could conjure with evolution, it doesn't dilute the facts. Just because we can attach something unpleasant to it, or that something is unpleasant, doesn't mean that it is not true.
Many who believe in evolution say that they also believe in God. However, they feel free to think of God as one who does not intervene in mans affairs, and who will not judge people. It is a creed that tickles peoples ears.
Then they are wrong. About 45% of natural scientists believe in a God who answers prayer, hardly a deist God is seen here, rather a theist God, one who does intervene and quite regularly too. There is nothing stopping people from believing in a theistic God and evolution.
Teachers of evolution are often motivated, not by the facts, but by their own desiresperhaps a desire to be accepted by a scientific community in which evolution is orthodox doctrine. There is much evidence that a scientist or teacher who openly believes in creation is likely to be ridiculed, marginalized, and otherwise punished by the orthodox evolutionary priesthood. (See movie Expelled, for example).
Maybe their desire is to teach something that has had profound influences in understanding the world around us, much the same as any chemist would teach stoichiometry, or physicist would teach Newtonian mechanics, or Relativity. Evolution has done much to help us in the medical field, many know about viruses and vaccines, but few know that the doctors who understand evolution feel that they can better treat and diagnose patients. And now there is a calling within the medical field to better train doctors in evolution because it is becoming more and more central to their practice.
As to the ridicule, any scientists who goes against the norm without the facts to back them up is ridiculed, not just in evolution. If they decided to go against gravity without any evidence they too would be ridiculed likewise. The movie Expelled is disgusting, Ben Stein has no knowledge of evolution and has many misconceptions. In the movie he does blatant unethical things, like showing Dawkins putting on makeup while excluding himself - it sends the dishonest message of how scientists have a superiority complex, even if it is only subliminal. He talks about Nazis, but either doesn't know, or didn't bother to include, that Hitler actually put Darwin's book on the banned list. By law, in Nazi Germany, you couldn't have or read a copy of Darwin's Origin of Species.