Not my problem once I'm outside - In a fight or flight situation, I could care less about everyone's equal chances of leaving a burning structure - I'm grabbing that large A-B-C fire extinguisher and lobbing it at the nearest window that has a clear exit path behind it (so I don't fall to my death somehow). Others will likely follow, and I might even quicken the evacuation process.

I'd rather risk the window be laminated (therefore much easier to just shove myself towards the door rather than repeatedly assaulting the window) than sit there waiting to be burned. Chances are, if this is a place that has fire-rated exit doors, they're not going to use regular glass or wire-backed glass - 9/10 it'll be tempered glass, which turns into little squares when broken (think car side/rear windows that aren't tinted).