Joseph, you have a habit of presenting your boich svoros or incomplete knowledge as fact.
The Halacha clearly states that any money or assets a wife comes into possession of during the course of her marriage is the full property of the husband.
As always, a little knowledge is a dangerous thing.
Actually, halachah also says she can claim איני ניזונת ואיני עושה which means of she’s earning she can keep it all – during marriage and beyond.