While surfing, I bumped across images depicting the world without engineers. Why don't you see for yourself and decide if you agree or not. Incidentally, I could not find any images for 'World without electrical engineers' so I took the liberty of pasting an image from my own collection; hope you 'll agree...
The world without Aeronautic Engineers (Fly baby fly!)
The world without Civil Engineers (Watch Out!)
The world without Communication Engineers (hello? hello? helloooooo?)
The world without Computer Engineers (Count count)