Parasite is a rather strong term to use in general with dealing with people. Sure some in these professions are only interested in making the most money for themselves but a good attorney is very important in dealing with a lot of legal issues. People who try to avoid attorneys, real estate agents (some real marginal people in that profession as well), etc. and do things themselves sometimes find out their lack of knowledge can cost them a lot of money in the long run.

I think some people get themselves into trouble when they assume a friend is knowledgeable in areas and then can't break themselves away from the person. I see this often with financial advisers and someone says to me 'Well they are a family friend' or something similar. I don't believe in mixing business and family/friends. And sometimes you can start off in a business relationship but then you start to feel like the person is more of a friend. That can also lead to trouble when you realize you aren't getting your money worth.

I think one of the best ways to save money is to avoid lifestyle inflation. This is when people start adding things to their lives w/o realizing it is adding up to a sizable sum of money that could be going into investments. People who feel like they need to hire housekeepers, need fancy items around the house they barely use, etc. Often things they want to keep up with the Joneses. Cars are a big waste of money. Others need the fancy shoes, jewelry, etc. I'd rather spend the money on life experiences like vacations, travel and also to have enough in the bank where I don't have to worry how to pay for a car accident or a medical emergency. There are tons of people out there living from paycheck to paycheck. In some cases due to very low earnings but in more cases than you think, it is due to excessive spending and thinking they deserve a certain lifestyle.