Engineering/proper science graduates are not so over-common and so employees will be less able to take the p*ss with things like this.
These jobs tend to be much more highly skilled than flying a modern airliner, so it's to be expected.
Any competant person, with sufficient cash and dedication can become qualified to fly a modern jet, thats not the case for most highly skilled Engineering/Science jobs etc
If only there was a higher barrier to entry to this industry
Quite.