Not so. Only a small percentage of "the wider public" have actually bought his records - the large majority has not.
As testified to by the sales figures of his records, it's therefore the views of the "handful of posters on this site" who are completely unimpressed by his records, that truly represent "the wider public".
Therefore BMG's liking it has got nothing to do with the views of the wider public. They'll like it if it makes a profit. As noted above, the fact that it does make a profit says nothing about its inherent aesthetic worth.
In other words, your constant response to criticism of Marr's records is a defensive "well, the record company likes it" or "other people like it". So what? That says nothing about the aesthetic worth of his records.
But I accept that the kind of people who lap Marr's songs up aren't going to be capable of employing their critical faculties to assess it, since they evidently don't have any.