Hi yekke2.
Great point! On the surface, these things seem a little too superficial to be genuine.
Now I am no expert, but for many reasons money can have great significance in spiritual matters and mitzvos. Even money, chas veshalom, from a rasha, like haman, can capture heavenly attention.
I think, like in davening, the intent, focus, concentration, etc., are what make it work or not.