I don't know. Engineers in general may be more impressed with skill than non-engineers, but as a woman in a technical field, I do feel constant pressure to not merely meet, but exceed, the abilities of my male peers in order to receive the same level of respect. I've felt it all my life, even as far back as middle and high school, competing in math competitions and our school's academic team, and being in the honors and AP classes.
It's not an overt thing. There's never any one comment or specific action by an individual you can point at and say, "See! Right there! You aren't giving me equal respect!" but the pressure is definitely there.
Also, the converse is true. Not only do you have to be better, to be seen as equal, anything you do wrong is magnified. Would Leah Culver's "creative" rounding method have been nearly a big deal if she'd been male? I have the feeling that while people would still have joked about it, it wouldn't have been as widespread or for as long.