There are different ways to handle this. It's fine to give examples and vary the pronouns-
"For example, a man's prosperity may be judged by the appearance of his home. A woman's prosperity may be judged by the value of her car. Everyone's prosperity may be judged by the type of clothes they wear, their shoes, their watches, etc."
Or you can make it generic-"A person's prosperity may be judge by the appearance of the home."
BTW- that's not a particularly good example.The type and size of home someone has IS usually the result of their level of income. Better examples for your class would have to do with clothing and grooming. When you walk into a job interview, you will be judged on how you dress and look. You need to look the way the company expects you to look when you have the job. That will depend on the nature of the job, of course- someone interviewing to be a car mechanic would be expected to be dressed differently from someone interviewing to be a salesclerk in a department store. Students often want to think they won't be judged based on neatness of clothing and hair, or tattoos, or piercings, but they will.