That is a simplistic point of view that fails to take into account the reality of operating media organisations that are not very profitable or well funded. While readers aren't paying for what they consume, someone else has to.
There can be a big gap between a handy freebie and a conflict of interest, and the trick is to operate in that space without stepping over the lines. It's just another part of the professional journalist's job and skillset.
Edited to add: That gap I spoke about above; that's nothing to do with this ongoing Samsung thing, which certainly falls well outside the lines any pro journalist would draw. But then I don't think Samsung's programme is intended for pro journalists...