@blackcoat @renegaderich the only thing I have to add is that WotC bought TSR (1995) before WotC was bought by Hasbro 1999).
D&D 3e wasn't out yet, but was well underway when Hasbo stepped in. The late 90s are kinda foggy for me, but I think it was announced before Hasbro started acquisition.
Anyway, WotC had a lot of freedom early on. 3 and 3.5 are basically all them. Hasbro wanted to sell more minis, which may have influenced some of the decisions in 3 and 4, but WotC still has some independence, despite Hasbro owning the company.
5e less so, and things have steadily gone downhill as D&D has become a larger and larger share of Hasbro profits. The bigger it gets, the greedier the corpos get, because they can't create anything themselves, just exploit.
But that may be verging on projection of my personal politics.