Corruption is a naturally thing for all humans - it will happen no matter what we do. However, I do not think that bitcoin will be affected by this as it is completely decentralised, 'completely'. This is great as no bank or government can manipulate the price and value of bitcoins.
Only the developers could mess with the bitcoin network, but I do not think that they would as then they would be compromising the whole reason why bitcoin is so good - its anonymity and decentralised nature.
Many people invest in bitcoin as it promises these advantages over wired transfer - and I do believe that this will be the future and cryptocurrencies will replace all cash currencies and wired transfers.