alt Hacker NewsNo, your robot vaccuum cleaner itself made _your_ life better. The _company_ made _the_ world worse, by over-charging, exploiting, and polluting. The fact that they happened to create a product that you personally enjoy does not negate the overall negative effect.
If the consumer thinks of himself as the center of the world, The Main Character so to speak, then the robot vacuum cleaner "made the world better."