No i've heard of bach and beethoven before jaco because they have had a larger impact on music as a whole, you can't argue with that i'm sorry but that is a fact. Bach, beethoven and composers like them have literally shaped and influenced music to what it is nowadays for various instruments and genres. Almost everybody has heard of them, now go up to a random person and ask em who jaco is.
Yes know them, be influenced by them but the fact that you don't know of them DOES NOT make you any less of a player. I can't stand about hearing about bassists who make such a big $h!t about him (not that he doesn't deserve it) and then complaining about bassists who don't know of him.
For example I know of Jaco, I see what he did but there are bassists that have never heard of him that can play circles around me, in terms of jamming understanding of music and overall skill in general.
So if you find a bassist who doesn't know who Jaco is don't instantly judge and do this

, then your just being a useless moron. Instead tell them who he was, that will help them.
As I said before I hadn't heard of Jaco until i logged on to this forum, how would it be my fault if no one mentioned him before then?