You said $90k-$100K isn't enough to deal with people. That means anyone who deals with the public should be paid that and more. Maybe you weren't making such a big point about the exact pay but I took your comment for what was said
If you flip the side of the coin people who have set paychecks without the aide of tips actually can become hindered by that with respects to the public.
Lots of crazy people out there that the public has to deal with. And anyone who deals with the public probably will say they aren't getting paid enough to deal with the stuff they deal with (and they probably don't). However, at $90K (a number a poster just happened to mention) you're doing really really good in the wages department---clearly you're making a
ton of tips. The person who is in retail is making a heck of a lot less (like a lot lot less) than that and deals with the same types of people. Or the person who is like me at a call center (yeah fun answering the phones for 8hrs a day) and deals with the same types of people is probably making less than 40% of that in the beginning of their career and may bridge the gap of course over the years but no where near that $90K number. And so on and so on.
Really it's just people having to deal with the public all deserve a little more respect than they probably get on a daily basis. We all can probably come up with stories to tell from the ones who threaten to get you fired beause you wouldn't take their expired coupon or the ones who scream at you because their insurance rate when up to the one who think you can't do your job because of your gender or age. And so many others.