In "Blues Ain't No Mockin Bird," why does Granny resent the filmmakers and cameraman?

Granny also
resents the filmmakers because they appear to be investigating the extent of her wealth (or lack
thereof).

For example, the cameraman takes pictures of the pecan barrels, the
sled, the printed stones along the driveway, the trees, and the toolshed. It never occurs to the
filmmakers that they are infringing on Granny's privacy. It also never occurs to the men that
they may be insulting the property owner by their focus on material objects.

When the filmmakers comment that Granny has "nice things," she counters with
I dont know about the thing, the it, and the stuff . . . just people here is what I tend to
consider. Granny feels resentful because the men appear focused on gathering information to use
for or against the food stamp program. The author does not tell us about the exact motives of
the filmmakers.

The filmmakers also ask intrusive and patronizing questions.
They appear to hint that the food stamp program may not be necessary after all.

"Were filmin for the county, see. Part of the food stamp
campaign. You know about the food stamps? Granny said nuthin. Maybe theres somethin you want
to say for the film. I see you grow your own vegetables, he smiled real nice. If more folks
did that, see, thered be no need

In all, the filmmakers
have chosen to ignore Granny's wishes and have treated her with little respect. Thus, their
actions fuel resentment on Granny's part.