A wider beam angle doesn’t emit more light, but it does spread the light out further and more evenly.
If you’re illuminating a smaller room like a bathroom for example, a medium beam of 40 degrees is fine. But if you’ve got a larger room such as a living room, a wider 60 degree beam would be a far better choice.
Narrow beams like 25 degrees are more focused and intense. They are better suited for illuminating specific objects or areas and for rooms with higher ceilings.