No, it's not. I'm not sure what your source of capitalism koolaid is, but employees are transacting labor for money, and shareholders do not come into it at all.

The nature of labor is stocking shelves, writing code, emptying trash bins, or whatever else you do. Full stop.

If you want employees to "think of the shareholders first", you give them enough ownership that the stock price actually makes a major difference in their life, and crucially, enough control at the company to actually influence the stock price. In practice that's the C Suite and maybe some senior VPs. No one else should be stressing out trying to make the owners richer.