why do we have so much electric things that aren’t much use eg. robots

Question: why do we have so much electric things that aren't much use eg. robots
- Keywords:
  electric
Asked by rob to Kate, Pip, Reka on 17 Nov 2016.
- Reka Nagy answered on 17 Nov 2016:
  
  Some robots are quite useful! While some are indeed not much use – but people like inventing things, even if they might not serve any purpose – they at least make the inventor happy I suppose!

Question: why do we have so much electric things that aren't much use eg. robots