[Viva Le Dissention]

Didn't you ever wonder why the majority didn't cite the 8th Amendment in its decision? Why it wasn't even argued?

It's not relevant. The 8th Amendment is a prohibition on government action, as in criminal cases. Like being convicted of shoplifting and getting a million dollar fine.
A civil case, however, we don't have government action. The case is wholly outside the scope of the government, since the judiciary, in theory, is only a neutral arbitrator. The jury imposes the fine, and the jury is not an agent of the government.

[Poohbah]

A civil case, however, we don't have government action. The case is wholly outside the scope of the government, since the judiciary, in theory, is only a neutral arbitrator. The jury imposes the fine, and the jury is not an agent of the government.

Wrong. The jury IS an agent of the government; they are paid by the government, and their decision is backed up by the force of the government.