What does the lack of words indicate?

What does the absence of words indicate?

Speaking without teeth: Speaking without teeth, wealthy and noble

Those who do not show their teeth when speaking, even if they are not wealthy, will become high-ranking officials. This kind of people will feel too much money and can survive. So money will be like a snowball, rolling bigger and bigger. The gums should not be exposed. If the gums are exposed, it means that the life of the person is not good and may be jailed. Women are especially taboo, but there is also a kind of women who show their gums, like a silly eldest sister.