Smart contracts aren't merely ways to allow one individual or company's action to automatically trigger the actions of another. There are lots of to do that already.
To call a mechanism a "smart contract" is to say that this mechanism contains both an agreement between parties and mechanism for the enforcement of that agreement - essentially one step beyond binding arbitration to automatic arbitration, by-passing courts in more complete basis.
There's a reason that courts exist as the enforcement mechanism for contracts. There are many the terms or implications of a contract can different from what a reasonable person would expect and courts, with humans, are the machinery for preventing the multitude of ways this happens (and even these are far from perfect).
The DAO event illustrates this but even more, the real ugly will rise when smart contracts are used for all of the really abuse which normal contracts have facilitated - usury, debt-peonage, sex-trafficking and so-forth. Basically, it facilitates putting the weak at the mercy of the strong in uncontestable fashion.
I'd like to know how you can justify taking part in this.