The banks, presumably, have a fairly good reason for restricting that activity, and the people on the trading floor have been given significant consideration (e

The banks, presumably, have a fairly good reason for restricting that activity, and the people on the trading floor have been given significant consideration (employment, perhaps, or access to the trading floor on behalf of their employer) in exchange for agreement to those terms. Chucking a "you can't bring your own WiFi [because we want to make more money selling it to you]" term into the standard language on a hotel agreement might have a much harder time passing muster. Further, there's a lot of caselaw built up over time that treats dwelling places, even temporary ones like hotels, differently than workplaces. (E.g. it's perfectly fine for your employer to set up cameras in your office to keep an eye on employees, but if a hotel did that in guests' rooms they'd have a problem on their hands, and I strongly suspect that wouldn't change even if they put some "you consent to be photographed!" small print on the check-in agreement along with the no-smoking policy and other boilerplate.)