Okay, let's look at it like this:
We are raised in a western pop-culture as kids. The first things we hear in terms of music is generally 4/4, rock and pop music. New Kids on the Block, AC/DC, Take That, Michael Jackson, Milo, Bruno Mars, Madonna, Adele etc. When we are educated in school, we stick to basic western culture music-patterns and learn that 4/4 stuff. We start to explore classical music (4/4 beat to start with) and sing pop songs in a chorus, play 4/4 beats on guitar, piano etc. At music schools, you start with the basics, which is - since the Ringo-Frenzy - 4/4 beat, the money beat. Once we master this basic coordination, things start to get more complicated. Still, every new drummer is being taught the basics, which is pop and rock beats, first. Only after that, people start to take the next step and add new genres to their repertoire, which is e.g. reggae or metal or funk, ... or jazz. Thus, every jazzer is basically able to play the money beat, four on the floor, as it was the basics where they startet. Every metal drummer can play four on the floor. Every reggae drummer can play four on the floor. (If they have the right attitude/enthusiasm for playing rock music is a different thing, but technically they can all play rock music - if they want (super-jazzer Brian Blade has his own rockband!)). A rock drummer however will have a very very hard time to play anything except rock convincingly without proper training in other genres es as all the other genres, metal, prog-rock, reggae, funk, latin, jazz, ... are NOT the "basics".
Compare it to this: Someone might be able to make scrambled eggs and french fries. But without further training, he won't be able to make a Plumpudding or a Boef Stroganoff or Saltimbocca or Paella. You start from somewhere and then add to your skill level. Drumming is no different to cooking or computing or photography or any high-tech job in this respect.