Wine Lists | Wines by the glass

I recently went to a nice restaurant that is part of a larger chain.  I went to the bar area and ask for wines by the glass list.  Once I received that, it had a dead bug on the inside of the menu, despite the bartender opening the menu in front of me.  Maybe I really looked that hungry...
Anyways - I was in the mood for a glass of red wine, and given that the restaurant was a steakhouse, I assumed a great selection of reds by the glass.  Wrong! My excitment of having a nice glass of wine were quicky diminishing as the selection was mediocre at best.  My choices for a good glass of wine were limited to either a glass of Mura Reserve from Spain for $15 or spend $26 on a glass of Silver Oak,
Alexander Valley.
The rest of the list was layered with way overpriced grocery store wines at 14-16 per glass!
WOW! - I thought to myself.  I certainly don't mind spending my $14-16 for a good glass of wine, but not for a grocery store, middle shelf, kind of wine.
I fully understand and support the idea of a corporate wine list.  After all, we are all in the business to make money.  But when the selections are purely only about money and no thought is spend to have a decent diversity of different wines, at different price points, you are killing the opportunity to sell the second glass or maybe even the first!  Having 15-20 wines by the glass where 80% of them are out of the grocery store shelf, but for 13-16 per glass, meaning 60 dollars per bottle?  That is crazy.
It certainly seems to work somewhat for them, as the bar was busy anyways, and I am sure lots of people don't know any better or simply don't care.  However, there were plenty of guests drinking mixed cocktails or beer instead of a glass of wine, which might be, what they prefer anyways.
For my sake, I personally won't sit a the bar and order a glass of wine again, and nor should you.