Institution adoption of Bitcoin will strengthen the Bitcoin foundation.  This means Bitcoin is leaning forward to what the government considered legal because, with this centralized institution, the government will have the chance to tax its users. 

We all know that institution will never set their attention and interest on anything if they don't find profit from it and it is no different from an individual who sees Bitcoin as a profit generating venture.  I believe if the institution finds Bitcoin profitable, they will want to maintain it as long as possible so I do not think that institution just wanted to raid Bitcoin, they in for profit yes but I believe insitution will make sure that their venture is for long term.