I tend to the theory that there is a corellation between lipid levels and heart disease, but not the one that has been pushed on us.

An alternative theory goes something like:

Some unknown, perhaps variable factor (though clamidia is in the frame) causes inflamation and damage to the cardi-vascular system. In an attempt to protect itself the body ups blood lipid levels and lays down layers of arterial fat deposits.
Sadly, what is essentially a healing process can itself become dangerous if the causative factors are not removed.