What happens when this logic is applied elsewhere? Lies for financial gain can become fraud. Is it acceptable to make it so lying for financial gain won't be

What happens when this logic is applied elsewhere? Lies for financial gain can become fraud. Is it acceptable to make it so lying for financial gain won't be a crime? What about lying for the sake of obtaining consent? Legal jurisdictions are starting to make this a crime, at least in limited instances (such as lying about use of certain birth control measures). One can even look at social engineering, which is considered a form of hacking, that specializes in lying to people or presenting false narratives. These all seem edge cases that still need to be handled.