I think that was the point of the elcor, kind of like how the Krogan were the Mandalorians of the ME 'Verse, and how Wrex was their Canderous. Hell, Wrex and Canderous even have basically the same story if Wrex survives. Of course, HK-47 does that speech thing much better than the elcor.
"I cannot be caged. I cannot be controlled. Realize this as you die, ever pathetic, ever fools!"