Before I was dating my wife, I dated a fairly successful real estate agent. I introduced her to a female friend who was looking to buy a condo with her husband. My girlfriend at the time and my friend got along and pretty soon my girlfriend had my friend and her husband in escrow. After a couple weeks my friend and her husband got cold feet and wanted to back out of the deal. My girlfriend, (the RE agent) was furious because the seller’s RE agent was calling my girlfriend and leaving nasty messages along the lines of, “You better get your client back into this deal. Where’s your client control!” For some reason my girlfriend took all of this to be an attack on her “professionalism”. Somehow I ended up in a bad spat with my girlfriend over this whole thing when she tried to say I had a lousy set of friends, and next thing I knew we weren’t boyfriend and girlfriend anymore.
All ancient history now, but yes, RE agents definitely consider client control an important part of being a professional.