Some of the more rare RS's that have been beneficial to shareholders is when the RS is simply to improve the stock price in order to uplist. That is, the goal is not to reduce a bloated OS, but simply to make the stock price work. For instance, a public company in the OTC that wants to get onto Nasdaq (for whatever reason) that has a current stock price of, say $1.25 might do a RS of 1 for 4, raising the stock price to $5. If the company can hold above $4 for the required time period, and meet Nasdaq's other requirements, then they could uplist. Getting onto Nasdaq with a $5 stock price could bring funds and other money sources into the stock.
But stinky pinkies don't do that. Most of those never get out of the pinks. And most funds won't touch any stock under $5...