Anyone who needs or wants something done for them and will pay someone else to do it. That can be anybody. If you decide that your time is more valuable, whether you use that time to earn for yourself or use if for leisure activities, spent doing those things than in doing household chores indoors or outdoors, you pay someone else to do those chores. YOU just created a job for someone. I wouldn't call anybody in my neighborhood rich, but collectively, we keep a lot of landscapers, driveway sealers and snow plowers (those two are often the same people) in work.
The wealthy play a very important role, in the field of consumer goods, that few understand and even fewer will acknowledge. In the early days of most technologies that wind up being mass-marketed, those products are expensive and only the wealthy can afford them. The wealthy tend to also be seekers of new things and are willing to spend $2,000 on that very early video tape machine (first the Beta and later the VHS), just as one example. Enough willing, wealthy spenders kept those markets afloat until the economy of scale could develop so those products could both evolve and improve, and be made so the masses could afford them. Electronics, phones, many, many consumer goods.