Here I explain, why SOA needs strategic benefits compared to the tactical goals of traditional applications.

Why has service-oriented computing an emphasis on strategic (long-term) benefits?

Strategic (long-term) benefits are better than short-term ones (with immediate return). An investment in a new design paradigm and the required technology has more likely a return (ROI), if the benefits are attained for a longer time-frame. Especially low subsequent governance efforts/costs are caused.