I think there is a connection between more masculine bulls passing on more femininity to their daughters.
Tthe problem is, way back, when the continentals came, there were some dystocia issues associated with the shoulder design of newborns out of growthy sires. Problem was, the low pelvic areas of the small cows was also a problem. This contributed to the emphasis on "clean fronts", the show ring went overboard with "goosey fronts" and "Zipper front ends".
these are great comments. as usual there is a balance. if a bull looked like the link below, i doubt he could sire something feminine
http://www.celebopedia.com/nikolai-valuev/
this is simply a normal distribution and we always seem to need to go a direction, rather than stay balanced. it has been shown that the most "beautiful" people are simply a homogeniztion of many people's faces superimposed on one another. the eye seeks symmetry.
to me, the ideal steer would have 4 hind legs so i could have more ribeye's and filets and it wouldn't eat, but i guess would poop a lot.
it would be very discouraging if the older coarse fronted dystocia genes were somehow linked with carcass quality traits and/or marbling on grass. (a link that could be broken by selection)