Eh, I wouldn't call him exactly helpful. He just isn't as harmful as 'normal', pathogenic viruses- that doesn't mean he somehow helps instead. He's more on the neutral zone if anything.
So, he can either be bad or good...depending on whoever meets him and wants to use him, am I right?
Basically, yes.
Ah cool, so he can either be a good virus or a bad virus. He just needs a nice person to be in his life. 