Pure science does not seem to have the capacity to tell the difference between good and evil. Most human children raised in a loving home probably have this capability even if they don't act like it. The definition of good and evil actions is not possible using science and yet it is probably the most important thing that humanity does. Science gives us the capability to produce atomic weapons, abort children, wage war, and generally cause harm to our hearts content. Which of these things does science teach us is evil? Atheistic scientific philosophy can't come to any real conclusions because it has no way to objectively measure good versus evil.
Hitler, Stalin and others committed evil actions because their atheistic philosophies told them they were doing something right. Most people can agree that their actions were evil. The scientific knowledge they used to accomplish their goals was not evil or good even though it was used for evil goals.
Jesus clearly taught his definition of evil and good. It is unfortunate that some people are not capable of accepting his simple definitions and they seek the definition of good versus evil in atheistic scientific philosophy. Science is many times used to undermine the accuracy of the Bible which contains Jesus words but the problem is that there is no atheistic philosophy that produces better results than what Jesus said to do. Jesus teachings are not incompatible with science because true science is essentially neutral regarding good and evil. Atheism generally produces evil results and true Christianity generally produces good results from what I have seen so far in life. Even many non-Christian religions produce good results when compared to the results of atheism. It's too bad that science can't measure these simple results that seem obvious to many people.