I think Money fits into the main concept of DSOTM. I agree that the main theme of the album lyrically is about life/the human condition. Money represents greed. I think it's explained quite well on the Classic Albums DSOTM episode. I can see what people mean that it dosen't fit musically with the rest of the album, since it's the only blues rock tune on the record. Personally I've always liked Money, and I think it has the second best guitar solo on DSOTM next to the one on Time. I'd hardly call it generic pub rock though. How many generic blues wank tunes are in a seven/four time signature, let alone switch time sigs halfway through the song? Not many imo. They usually follow a 12 bar pattern and are in standard four/four time. Money is unique in that sense