Respect from management, yes that should be there entirely. However, the link between wages and costs to the customers is something that cannot be overlooked. If you have to start charging more per meal, unit sold whatever to cover the increased costs (because, let's face it, companies are not going to let their profit margins drop.) then is it going to get to a point where the customer sees it as too expensive. The reason wages are so low within the hospitality industry is because of how labour intensive it is, paired with the price elasticity of whatever they sell. To say that 'many' hospitality places pay well is actually laughable and if you'd like to tell many of my former coworkers that, I'm sure you'd realise what a ridiculous statement it actually is.
We've seen similar with pubs, the running costs of them have gone up - leading to the price of a pint going up, meaning more people staying at home and drinking because there is a cheaper alternative - namely buying alcohol from supermarkets. Pubs have shut left right and centre (home town went from 21 pubs twenty years ago to 11 now as an example).
Pushing wages up might be seen as something wonderful short term, especially if we start paying for people to work when demand is low, but the reality is in the long term, especially within that industry, it would lead to closures. Maybe not in the big chains, but the smaller companies that would have to keep pace with wage demands across the industry.
If people want good wages for hospitality staff, they'd have to pay for it. I'm not sure that there's an appetite for that.