What do you think of Steam Direct?

In what fantasy world are you finding plenty of rich people giving money to fund games development, uh ?
You are talking about your own fantasy world. It doesn’t happen in the real world in most countries and even where it happens it still just for a few.

NONSENSE !

Is Apple asking developers to pay $5,000 to publish any app or games perhaps ?

Apple enforces quality control over what it is allowed to sell on the App Store. THAT is something Valve should do as well by hiring employees to do that job.

Is the App Store full of bad stuff ? Well… yes and NO ! … Compared to the mess that is the Google Play Store for Android the App Store regardless of some bad apps and games it still features high and very high quality products overall.
And Apple asks just a small annual fee. Not a very high annual or per-app fee.

If Valve asks a very high fee Steam kicks out all indie developers and most small software houses. It is as simple as that. Surely many large software houses hinting at the $5,000 fee would be pleased by such a thing…

If it was for people like you the Apple App Store and iTunes would have been a huge financial failure with only big studios and big software houses able to afford publishing anything there.