I'm probably over-thinking this but I couldn't find anything on the boards for this specific thing (and to be honest I didn't search very hard because I hate the way the search feature is).
I was planning on tipping our bartenders (of course) but then when we finalized the contract, they had 2 different hourly rates. They get $x per hour if they're allowed to have a tip jar on the bar. They get a higher hourly rate if they cannot have a tip jar on the bar (to compensate them for the lack of tips, I assume). It's a somewhat significant difference in amounts.
We are paying them the higher amount to avoid the tip jar. I still feel inclined to tip them, though. It feels icky not to. Should I tip them the same amount I otherwise would, or a lower amount since they're getting a higher hourly wage to compensate for no tip jar [is this like built-in gratuity for them?], or what?