There are of course many significant contributors to the technology we have today, and they all deserve to be recognised for their achievements. But none of this takes anything away from the fact that Tim Berners-Lee put it all together into a complete working system, the system which is used all over the world. He certainly isn't the only person who should be so honoured, but what he did was certainly a milestone in technical advance.
The reason he gets all the credit is of course because even the tabloids and the BBC can understand roughly what the WWW does, but comparatively few people understand (or care about) what the supporting protocols do.