What does it mean when a girl says that even if a rose withers, it is nobler than the wild flowers on the roadside?

Girls say that even if the roses wither, they are still nobler than the wild flowers on the roadside, it means that they use roses and wild flowers on the roadside as a metaphor for their current status. Wildflowers are wildflowers. Although they work hard to bloom, they are still not as good as roses. It means that the current status of girls is either as noble as roses or as lowly as wildflowers on the roadside. This sentence is used as a metaphor.