As for Fullers, I don't know about their rapaciousness but the mere fact of siting a brewery in Chiswick seems somehow wrong to me.
When Fullers started up it was normal for breweries to be local. Transporting beer was very expensive relative to the cost of the beer unless you were on a waterway, & there was no refrigeration. Only high-alcohol or heavily hopped (or both) beers could be transported reliably for much of the year, & only premium (read strong) beers sold at a price which would enable recovery of the costs. Hence IPA, of course.
Chiswick was an excellent location for a brewery. It was upstream of most of London's pollution, so had usable water. It was close to the largest market for beer in the world. River transport extended the distance the beer could be economically sold over. Effective (via the river) proximity to the greatest port in the world enabled export of suitable beers.
Railways were about to transform the ease & cost of transporting beer, but the location was still an excellent one.