which is more important - using your laptop on a flight or arriving safely?

The truth about your laptop computer and landing safely - National - smh.com.au

...Over the past decade there have been more than 100 incidents in Australia of navigation system failures, autopilot malfunctions, interference with radio transmissions, incorrect readings from flight management computers and false alerts from engine warning systems - all due to portable devices.
..."You've got to ask, do you want to get there, or do you want to use your laptop?"