A tad harsh, Whirls! Not all freelancers are looking at the mighty buck.
A fair cop Mongoose but, you have to concede, not entirely an unfair comment?
I have had, through my flying "career", 7 different instructors at three different schools. All of them I would highly recommend. Two I know where salaried but the rest were freelance. I'm not sure if it is valid to extrapolate those statistics but, I am sure that there are many conscientious instructors out there.
One piece of advice I was given (which may, or may not be fair) was to find an instructor who instructed because he wanted to rather than who was hour-building to get onto the more "exciting" aspects of flying.
How someone is paid, in whatever profession, has a bearing on how they do the job and their motives for doing it. I think of lay magistrates for example and special constables!
Cheers
Whirls