I agree that can be a consequence (although it isn't necessarily so; many people just leave their savings be), but I don't believe it ever was a goal.
And regardless, I think it's a big leap from "some savers wanted higher returns" to "let's throw a lot of money into things without due diligence or a coherent success story". Which unarguably happened lately. E.g., all the "smart" money invested in FTX, which we now know to be an absolute clown show. Other, better choices were possible. Including the supposed experts saying, "Sorry, we can't deploy this capital for you, as we don't think there are good opportunities in the current market conditions."