Yes, by virtue of being useful and consequently used for commerce.
If the Foundation does right by the current community, they will basically grease the wheels to further the use of bitcoin for commerce as well as to combat negative press and regulatory maneuvers regarding btc. But it's plausible that btc would become big without such a Foundation.
Currency is the biggest ponzi scheme of them all...there is no way governments are just gonna let this happen...we need people to be well equipped to defend Bitcoin and we need to organize now...otherwise, I fear Bitcoin will be crushed before it gets big...