What matters most is that my son will marry someone who is rich.
Is the only thing that you care about money?
No, not all love stories will have a happy ending so I anticipate everything.
There won't be a happy ending if you just want to force your son into a marriage he doesn't want. He's going to be very unhappy, all because it's what you wanted and not him. Marrying for money and not love is super shallow and damaging to his life.
Several love stories end up with the girl's death in the end. I want my son to be rich.
Money is not everything! Marrying into money is not going to solve your problems. You should value love more than money.