Thomas' skepticism has earned him a place in our dictionary: "doubting Thomas" and made him the patron saint for our time (John 20:19-31.) Many scientists, many "modern" people for that matter, are skeptical about religion. Many people are skeptical about the discoveries of science. Many are skeptical about our politics.
Thomas didn't believe that his fellow disciples had seen the Risen Christ. "Unless I see....," is our mantra as well as his.
Jesus says, "Happy are those who have not seen and still believe."