While executives certainly make ale more money if they make more money for the company they are running, the shareholders own the company. I recently read that over 50% of all US stock is held by retirement plans, 401ks, and mutual funds. So the primary beneficiary is the middle class.
Further if a Corp makes more profit the government collect more tax. (If the executives take a larger salary they collect more tax too). So social programs benefit from corporate financial health as well.
Additionally corporations that make more money hire more employees, so society as a whole benefits.
Of course when a corporation cuts costs in producing a product, the price of the product falls and the consumer saves money.
I’m not sure how corporations being able to save money on costs can be construed as a bad thing. Corporations are the life blood of our economy. They are how we have jobs and are able to obtain the goods and services we need. They are not amorphous, evil entities that are a scourge on the world.