On the basis of science, I think as the material sciences develop, people tend to become rationalists based on evidence. They tend to contemplate less on the unknown and concentrate on what has been found. This, in a way, may be termed materialism but what has been found in the last 100 years or so is, by any standards, revolutionary - even by sciences' standards.
I think science and philosophy stand opposing grounds. Whilst the open-minded may think of them being complementary subjects, they stand on opposite grounds. One looking into evidence, the other thought - the contradiction is apparent. But I agree, we need to re-ignite philosophy to the masses ... this that will breed thinkers.