This was not an easy question to answer :-) I guess what I've noticed is that although if you pressed them, engineers (across a range of fields) understand tha

This was not an easy question to answer :-) I guess what I've noticed is that although if you pressed them, engineers (across a range of fields) understand that businesses need to generate a healthy profit to stay afloat, they still seem to be uncomfortable with the idea of "profit" at all. And they seem to be surprised when you bring up the question of "how will you make money from that?" Whereas the "general public" tends to think of it with an approach of "make as much money from it as you can because it might not last." I know that's not a very good description but it's the best I can do at the moment.