I personally don’t think you can claim that it is "Ignorant" to take these positions on certain scientific beliefs while still enjoying the benefits of modern living.
Scientific research can be classified fairly well on a spectrum where you have "Observable Science" on one end of the spectrum and "Theoretical Science" on the other end of the spectrum. "Observable Science" generally deals with determining a cause and effect relationship, and these relationships are often used in practical ways; and tend to be the foundations of the products people use in daily life. "Theoretical Science" generally tries to explain why one of these cause and effect relationships exist.
The results of "Observable Science" are rarely questioned because they’re reproducible, and while the observations may be incomplete they’re rarely incorrect. In contrast "Theoritical Science" is constantly questioned from both within the science and from external groups (for example religious groups) in a large part because the theory can not be proven, theories are often replaced or falsified, and the consequences of the theories may be undesirable.
Now I don’t deny that Natural Selection is a more reasonable theory than Creationism, but that doesn’t (necessarily) disprove creationism; and neither theory has anything to do with the observation that there are chemicals that interact with the physiology of the human body and can be leveraged to treat disease.
