The platforms have already been taken over by finely tuned marketing, no need for large companies to get involved.
In fact, large companies might bring some refreshing linguistic restraint into the game, as I would expect them to be much more cautious of claiming "best/first/only in the world" about products that are clearly not. I rarely see a product kickstarter that does not look like exactly how a highly polished parody of product kickstarters would. At least with a big company, you would know that they put more into the product than into the campaign.
What is currently ruining the platforms (well, at least ruining kickstarter) are campaigns were this is clearly reversed, e.g. campaigns trying to do a moneygrab with something as commoditized as USB power banks.