I've been playing RTSs for a long time and never really felt that way...
however, playing the Age of Empires 2 single player, which is built around realistic events and stories like the Spanish invasion of the Aztecs or El Cid's life... those would get to me, I'd really feel like I was pissed off at the Spanish for chasing me from my home town
and oftentimes I'd build realistically... build the troops I KNOW the Aztec would use against the Spanish... instead of saving up for kickass troops that probably weren't around for those fights in real life
however, playing the Age of Empires 2 single player, which is built around realistic events and stories like the Spanish invasion of the Aztecs or El Cid's life... those would get to me, I'd really feel like I was pissed off at the Spanish for chasing me from my home town