The term for someone who fails to adopt new techniques or technology, "luddite" comes from a late 18th century movement of sabotaging stocking frames, spinning frames, and power looms, as they represented a threat to those skilled in hand manufacture.

High pressure steam engines were considered dangerous due to (early models) propensity for exploding (Thurston, Robert Henry, and Wm. N. Barnard. A History of the Growth of the Steam-engine,. Centennial ed. Ithaca, N.Y.: Cornell UP;, 1939. Print.)

Abolishonists maligned the cotton gin, as it's implementation made the Southern antebellum plantation system, slaves included, a profitable venture, and as such, it was a contributing element to the expansion of the slave trade in the US.