I personally find this very true. I have college classes that i attend in addition to work and not only do i have to be self-motivated to get myself to my classes, i also have a lot of extra work outside of classtimes that i have to do (currently choreographing for an upcoming dance show, as well as for a class i teach).

As far as work goes, i have a very flexible job that allows me to come in whenever i want as long as the work gets done, but again, i have to make myself go in - no one is going to call me up wondering where i am. My job itself is a pretty responsible position - i take care of the office part of a landscaping business: phones, mail (easy stuff), invoicing, collections, payroll, reports, taxes, contracts, etc (more difficult stuff). I definitely have found that the more responsibilities i have at one time, the more i need to not be responsible and "in control" when i'm away from these things (and it's hard for me to let go of these things even when i'm supposed to be "relaxing").

I've always been pretty aware of power plays and manipulation - mainly, who has the power and what could set this person off, so i don't think that D/S has increased that awareness simply because i already had it. However, it does give me the chance to clearly see the lines of power without manipulation and power struggles going on.