I'm aware it has a significant amount of momentum and there is a possibility of a paradigm shift as a result. However, most organizations at the moment, are at the mercy of their banks, which are in turn (supposedly) at the mercy of the policy and legislations. I personally believe the majority of corporations that use a bank, and have a legal team and legitimately declare their money and tax will not accept Bitcoin without some form of legislation change. I have no evidence to backup this claim, although the EFF is an example instance. So there maybe a paradigm shift, but for large scale adoption (e.g. your local tesco's accepting it) there's going to have to be a legislation change.

It's definitely possible that a potential paradigm shift created by Bitcoin could lead to a change in legislation, which could then lead to larger scale adoption. But that would still require a legislation change, which I personally believe should be informed by academic research. Most large corporations should (an typically do) do what the law says and the law says very little about Bitcoin, so I believe they will do very little about it.