People's expectations have changed too. Members today expect excellence, quality, - even perfection. A pastor should be likable, funny, a good organizer, great office manager, excellent people skills, have good looking well-behaved kids, stay slim, dress well, be a 'good communicator,' and be willing to work for considerably less than some of the board members. Anything less, and some members get dissatisfied. The trouble is, we ministers aren't perfect.
People expect more today.
A pastor needs to be better today just to survive. If you aren't really good, you might not 'make the cut' with some people. Its hard to be perfect when you're not. Pace of change. We are right now going through a period of massive change in worship styles.