This phrase was also the working title for the unreleased Radiohead song Big Ideas (Don't Get Any). In the tour film Meeting People Is Easy, Thom Yorke is taped in an interview saying wryly that the band chose not to go with this name because they "felt it wasn't catchy enough."
You can gain a good insight into Thom's sense of humor if you first look at the multiple meanings for home (check Webster 1913's write-up), and think of all the anti-capitalism connotations the phrase could take on. See also the line "(moral) bank (hole in wall)" from the song Fitter Happier.