With a little more contemporary cultural flair, Wesley J. Smith makes a similar point in his piece, "The Walking Dead" and the Importance of Dead Bodies here. Turns out that as cremation is rapidly replacing Christian burial, "liquefaction" is the next trend in disrespect:
One trending secular approach for discarding bodies—I can’t think of a more apt descriptive—is liquefaction. The BBC described the system thusly:
The system works by submerging the body in a solution of water and potassium hydroxide which is pressurised to 10 atmospheres and heated to 180C for between two-and-a-half and three hours. Body tissue is dissolved and the liquid poured into the municipal water system.
Having one’s remains poured into a sewer sends a powerful symbolic statement that human beings are nothing more than the sum of our chemistry, just as reverential burial says we are something more.