You're not just one among them given how much control you have over the language itself. Those other companies aren't founded by the co-creators of and main contributors to the language.
Sure, but there's two separate concerns here. One is that money will turn us evil and we'll exercise undue influence. My counterpoint was that JC has been around for six years now and in that time we've actually strengthened Julia significantly as an independent project. My other point though was about concentration risk. I think far more common than people turning evil is that companies go all out raising money, become the only people developing a project and then if the revenue doesn't come as planned, the company and the project fail together with unpleasant results. At this point, if Julia Computing fails, Julia the language will survive no problem. Of course we're not planning on failing, but before going out on this commercial path, it was hugely important for all of us that Julia is on solid footing. For must of us, what we've built in Julia is our "life's work" (ok, it's only been 10 years, but that's a substantial effort still) and we're not planning to let that just die.