Koranic literalism is partly responsible for this because there are, after all, roughly 80,000 words in the Koran to take literally. Thus it is hardly surprising that Islam pervades every aspect of life, especially if we also consider the Hadiths, Islamic jurisprudence, etc. which have been piled on top of the originating Koran.
Now we must say that it is Koranic literalism, along with Islamic totalism, that makes the ‘extremist’ Muslims the extremists that they are. To put it simply. The Islamists, fundamentalists and the militants have got it right and the moderates, or modernisers, have got it wrong. Or at least it is more likely to be the case that the former have got it right, even if not in every respect.