I think you're many years too late with these.
a sub-2:10 (say Stephen Scullion of Ireland or Richard Ringer of Germany) is nowhere near a medal contender on an international stage. Taking Eliud out of the occasion, how many 203 & 204 guys are there nowadays? loads
2:10 isn't even that assured of doing well within European Champs:
Ringer, GER, 208
Scullion, IRE, 209
Abdi, BEL, 203
Nageeye, NED, 204
Amdouni, FRA, 205
Abraham, SWI, 206
Petros, GER, 206
Teferi, ISR, 206
and that's just off the top of my head. 2:10 isn't threatening those folks
Secondly, 2:15 is not world class - it doesn't even qualify you for the Commonwealth Games [2:14:00], unfortunately it's a real dead zone between the big guys and the club runners
And then 2:30 is not National Class by a long shot. I know guys running 2:24 who haven't broken 15:00, to even enter into British National Champs you have to be 13:55 I think. 2:30 is just for a dedicated club runner.
Just because you can win your local Marathon doesn't make that person a certain standard of athlete, heck I know local 10K's won in 36mins, it's a bad measure to go by
To OP's original question I think 2:39 for women is really testing the limit of being defined as 'sub-elite', I think 2:35-36 is more the limit. On the Men's side it seems 2:20 is the sub-elite standard. National Class starts somewhere around <2:12-13