Not really. The modifications that people get today, usually of the breasts and face, are intended to enhance the visual indicators of youth and health. I don't think they're meant to signal wealth, especially since the people who get these procedures are often loath to admit it.

But there are exceptions; some people are open about their cosmetic surgeries. Perhaps some of them are (consciously or not) displaying their wealth.

I don't think tattoos and piercings are signals of wealth, usually. Most people in rich countries can afford them. Really elaborate tattoos might be an exception.