Such motivations, especially when entrenched early in life can be quite powerful. I think there is some truth to the fact that Gen X/Y members will be harder to keep buttoned up when given secret clearances but it won't be quite as hard as it would be without the patriotic angle.
What the probable response will be against these leaks is a change in hiring practices (less reliance on subcontractors) and more thorough vetting procedures.
Rather than, what we'd all like to see (huge assumption on my part there): a more transparent and surgical use of these capabilities with much better oversight in place.