But that's not what was being discussed. The point was that it was said that staff (interestingly only waiting staff were talked about) didn't care about the profits as they don't get a profit share - they care about tips. This was in response to someone saying that people coming through the doors was the important thing, irrespective of whether they tip or not.
This is true though.
On the assumption that the restaurant is in business and will continue to be in business, the individual waiter or waitress is going to appreciate the compliment of a nice tip much more than the "compliment" of a repeat customer who comes in regularly because they think the place is great but are too mean to tip. And if it's a choice between the warm fuzzy feelings of a customer who says how great the place is and keeps coming back, and a customer who only visits once and leaves a tip, it is the tip and not the repeat business that makes a difference to the person who served them, who does not get a share in the profits made by the business.
The obvious point here isn't about tipping despite you trying to make it about that.
But this thread is about tipping. And there is no evidence that tipping or not tipping is linked to businesses staying afloat or not.
It's pointing out that without customers walking through the doors there is no restaurant to work in. No job. No tips. The service industry is being hit really hard and that is only going to get worse. When people can no longer afford to heat their homes, or drive unless necessary miles etc then luxuries such as eating out are the first thing to be cut back.
What has that got to do with tipping?
So it's false to say staff don't care if their restaurant is doing well or not. Most will care as they grasp that if it's not their job is on the line. Most will worry if customer numbers drop.
Again, nothing to do with tipping, which is something the vast majority of customers do to show appreciation for the person who served them, and something most waiting staff rely on as a part of their income. Because the warm fuzzy feelings generated by a nice comment, or company profits which don't directly filter down to them, don't help pay the bills. Tips do.