Actually it's not that bad for bitcoin. As long as its not being used into something illegal then its fine. Making bitcoin as an investment or asset is just a matter of choice but not a bad one. For me its one of the reason why I consider bitcoin as a multipurpose currency.
Bitcoin is made to be used in payments but a lot of people see it as an investment rather than a currency. Though it is not that bad that bitcoin is used for investment infact it helps with our financial problems or status but with this we can't have a stable price for bitcoin. If we manage to stay to bitcoin and still recognize bitcoin then it won't experience its down fall.