It really can't be understated, he was one of the first to really do something unique on the site that had an original format and a vision that was more than just a viral video, but a series like a professional media maker would put out.
Which is kind of sad, considering that after all these years, the youtubes potential was never fully realized and now it's just a husk of what it used to be and could've been.
There are the rare videos that are truly inspired and interesting, like the Kane Pixels backrooms vid. I understand he's built on that with more videos and lore, but I can't speak to their quality b/c I haven't watched them.
It just would be nice if youtube inspired more creative endeavours like Rolfe or Pixels. I mean, James first couple years of AVGN had some cool little moments with the homemade effects and shit. All the way to something like the backrooms, which reminds me of something you'd see on MTVs old Liquid Television.