No. The Superstar that they're talking about is Luminary, a vocation in Dragon Quest series.
In main games they're always called Luminary, and it's only in Dragon Quest of the Stars that they're called Superstar.
Wastrel is such an archaic word. Like imprudent. I know English isn't the first language of most translators so I hope more people will point out to them when they use archaic words.