Sense data are much more controversial than qualia, because they are associated with a controversial theory of perception - that one perceives the world by perceiving one's sense-data, or something like that. ↗
During the earliest stages the child perceives things like a solipsist who is unaware of himself as subject and is familiar only with his own actions. ↗
It is only since linguistics has become more aware of its object of study, i.e. perceives the whole extent of it, that it is evident that this science can make a contribution to a range of studies that will be of interest to almost anyone. ↗
There's no leader of this band, and there never will be. That's the key. You can't control how the public perceives you-people see rock'n'roll bands as the guitar player and the singer. ↗