Well they could easily make it of russian last name too.
There are a lot more or less common last names with roots meaning money, welth e.t.c.
for example: (the last names of people I personally know)
- Барышев (барыш - money)
- Скоробогатов (скоро - fast,soon| богатый - rich, welthy)
- Золотой (golden)