Probably that the word engineer should reflect professional engineers and not include mechanics, photocopy servicers and gas men….and that we get paid a LITTLE more money generally. Is that asking too much?
I think I would just increase people’s understanding of what engineers do. There is such a variety of careers out there and sometimes people don’t realise that engineers – even ones that did the same university course – don’t all do similar projects.
I agree with Robin, the average person doesn’t really know what an engineer does – people often picture a stereotypical, “man in a hardhat and fluorescent vest”. So, I would start with ensuring that everyone knows why engineers exist.