I would be the first to say that it's not the camera that takes the picture, but the photographer behind it. That having been said, having the right gear allows you to make and deliver good pictures more easily.
Gone are the days when a couple of cameras, three fixed lenses and a Metz in a fishing bag with a dozen rolls of Tri-x represented a complete outfit for a working news photographer. The arrivals of colour pages and portable transmission kits heralded a big increase in the amount of kit we were expected to carry and meant that there was no real alternative to driving everywhere. Picture editors now demand well lit and properly captioned images, and they want them quickly. I will admit to being an equipment junky.