It should be noted that all the SRO BOffs below 10 mil got cleaned out a while ago, so the only way you'll get that trait is by blowing about 10 mil ECs. Or getting lucky enough to get the BOff recruiting mission (which for an uncommon mission happens less than those very rare beta ursae missions...).
I make all my marauder mules KDF aligned romulans so they get about 30 mil just selling off the boffs with Superior operative every 15 or so levels. I find it pays back the doff investment of marauding and then some, by a wide margin. It's also a surefire way of getting superior operatives if you've about had enough of rolling the dice hoping you'll get lucky with the hilariously random and stingy doff system.