A surprisingly large proportion of the company I work for are former Boy Scouts, and I think some of the founders even met each other through the system. So, there's some small anecdotal evidence that it can help in your career. I was never a member, but that didn't hurt my chances of being hired anyway.
Incidentally, the large population of former scouts also means I got to hear a fair bit about the gay scout ban thing a few years ago. I was quite surprised to hear about it at the time since I didn't realize the boy scouts were such a conservative organization. It probably shouldn't have come as a surprise since it's all about old fashioned morals and everything.
Still, at least I could avoid the conversations since I wasn't ever a member.
Mind you, in order to become a mason, you're required to believe in god in a way or another, though not any god in specific. So ye, they prob do take in cthulhu cultists, but not atheists :v
Thats true for DeMolays, at least.
This is true, but in practice you'd probably be "blackballed" if you tried to join most chapters as anything other than a Christian. I'm not a Mason, but my father is, and he described the process as effectively being an informal background check where a committee of people get together and investigate potential newcomers. At the end of the process they anonymously stick a bunch of colored marbles in a bag, and if anyone doesn't want you to join they stick a black one in. If any black marbles are in the bag, you don't get in, no questions asked. As a result, you pretty much have to match status quo in the area, which is unlikely to contain many Cthulhu sympathizers.
I'm sure it varies by chapter though, and while the local chapter is predictably Christian and includes Bible readings in their meetings, there are probably less strict varieties.
Apparently the Masons can't ever directly ask you to join either, which is something I'm thankful for. It was clear that my dad wanted me to join, but since the Masons do require the belief in a higher power thing I couldn't in good conscience join it and really didn't want to fake it.