Most highly educated people employed by companies tend to work on teams of varying sizes (but rarely consisting of just one person). Thus if a spy could report

Most highly educated people employed by companies tend to work on teams of varying sizes (but rarely consisting of just one person). Thus if a spy could report back significant details about the work of even a small team (maybe 5-10 people) it seems like the economics would work out quite well. Bigger teams would pay off proportionately more.