Yes, but Bars & Restaurants there is the socially agreed upon expectation that the appropriate people are tipped. Its a social norm that virtually everyone is aware of, including the employer when they started the business.

The 'bribe the front desk' is not in the same category imo.

I think if you aren't willing to consider where you think the line is as the customer, you are ignoring the impact of your actions which is generally not the best idea.