[alternatex]

You can create a lot of profit for your employer whilst contributing nothing to society or even be detrimental to it. Money has no bearing on that.

[giancarlostoro]

They can take the skill to any other employer and improve performance for others elsewhere. Think of all the seconds you could get back to do more meaningful things if more websites were fully optimized. It may sound silly but it snowballs into minutes, hours, and days.