Would you ever go camping and just set your tent up without checking the ground underneath? You're supposed to check the view in your mirrors when you first get in the car right? Would you ever travel to a foreign country for the first time without at least glancing at a guide or phrasebook? Hopefully you answered "no" to those questions - let's act like you did anyway.
What you're doing up there is establishing the context for your actions - hopefully you're doing that because you know that understanding that context can be key to that endeavor being successful. Now here is where it gets weird. You'll do those things, sometimes without thinking, and yet chances are you've deployed an enterprise-wide application costing many thousands of dollars without even a second thought for the culture into which you're tossing it. You also recruit people, hire them and toss them into a mix of you-don't-even-know-what. This great article by Meghan Biro really made me think about this this morning.
Everyone should understand that yes, you have a corporate culture. Culture grows organically - it doesn't need you to consciously act to grow it. The only difference is that if you are conscious of it, then you have a chance to actually influence it.
What Meghan's article did for me this morning was remind me that culture impact everything we do. Also, that at any one time, multiple groups within your organization may be living out different cultures. Don't think so? Go hang out with the developers or engineers for a while. Then go hang out with let's say the finance department. Yeah, exactly.
So how do you unite different generations and different operating units? You have to create/maintain/live a set of cultural values that is larger than any of those other silos. Don't be afraid to give people something larger than themselves to belong to. We actually really like that.