As I said, there are bad SMs in good firms and vice versa. If your manager isn’t giving the service you require, ask the head office to replace them. If the Strata Management firm isn’t responsive enough, look at their contract and start working out how to replace them.
But if your EC doesn’t mind or doesn’t care, your real problem is with your neighbours rather than the strata management firm who may not even be aware that there is a problem.
Regarding the money they make. don’t confuse the amount of money they collect with what they actually earn. Most of what they receive ion levies goes straight into bills to service the building. I’m not saying there aren’t SMs making a decent living, buit there’s a lot of confusion between what SMs in general collect and what they get paid.