Really? Um, MS led the way with IE6 and all of the baggage they brought. Google took the mantle with Chrome. Ultimately, it is the browser vendors and their "interpretations" on how to handle things. Rather than working with the governing bodies (yes, they are slow), they forged ahead with their own implementations and forced everyone to follow. No browser is perfect, but the travesty that IE left us with should have been the glaring example of what not to do, but yet Google went and did it again.
The internet is nothing without the browsers. If the browsers didn't do bad things, we'd be in a lot better situation.