In today's world , Islam is the most "influential" religion on the planet. It "influences" its followers in every way--negative or positive. Almost WHOLE Muslim world is "practicing Muslims" in relation to other religions such as Christianity etc... See this result- picture of comprehensive Gallup Survey which determined the "religiosity" of different people. (See the Muslim world)
The "lowest" Islam scored are Iranians which are "average religious" people ....
Turkey is in "more religious" category.