Not disagreeing with you all, but: I guess it depends on where you were. In 1994-6 I worked with a friend at IBM Watson on getting netbsd going on powerpc. Linux killed that effort. It turned out that the BSD license would allow different parts of IBM to hold back code from other parts of IBM and still ship product. The GPL made such behavior much, much harder. The engineers inside IBM preferred sharing code, and the GPL made that possible. At least that's how it was explained to me.
Weirdly enough, though, sometimes lawyers prefer the GPL. On our third foray into getting a sane license for Plan 9 in 2013, it turned out Lucent legal preferred GPL to BSD. Go figure. I don't understand lawyers most times.