I’ve not actually tried a modern sonic shower so I’ll take your word for the limitations of them as things stand and guess they’ve figured out how to make them work effectively in the next few hundred years.
I think the Ferengi we see have excellent teeth, by Ferengi standards. you can see they’ve working hard to look after them, rather than trying to look like hoomans.
The basis for the rationale for putting up speed cameras depends on the police to act with an unquestionable moral authority.
By acting with inconsistent moral principles they demonstrate their stated and genuine motives differ which undermines the moral authority they need to police by consent.