Your idea works great as described. The system has grown beyond that though. Capitalists receive these IOUs because they own a portion of a company that owns a thing that neither the company nor the capitalist has ever had anything to do with. They receive these IOUs in perpetuty, but they never provided any contribution to the creation of anything.
Then you stack this a billion times, with IOUs servicing IOUs, amplifying the amount of IOUs, and skimming IOUs at every point from people who actually do the work, just to increase the number of IOUs held by a handful of people, until those people who contribute nothing, now hold the majority of the worlds IOUs.
This is fucked.
I absolutely paid attention to these things, even spending more on more efficient appliances after figuring out the break even time on the price difference.
I consider the power usage of everything in my home. I'm down to 300w idle draw from more than 700w.
I'm pretty annoyed to find out the star scheme is bullshit :(