Yep. If someone else were to consume it, while they wouldn't see the kettle drops, they would gain benefits in some other ways, likely actual great god-like fortune for a limited time that could allow them to win a lottery.
It costs a philosopher stone, which was described as when added to a staff being something that any magic user would pay any price to have. The only benefits here are that the money drops don't have any effect on the economy so he can use them on his item upgrade system without messing with the rest of the economy, and the vague fortune buff that suggests it is far more potent than just being financial benefits.