I also believe it is possible that there are some branches of Freemasonry which are not decent and which do not have decent aims and goals. However, it is also clear that such groups of freemasons would be kept secret, and you guys wouldn't be informed of them...so although you are freemasons, you don't have the information to either allay or confirm my concerns
If some small, secret group of men are involved in some nefarious plot, it doesn't really reflect on the whole group does it? To go back to my bus driver analogy, if 20 or 30 bus drivers secretly meet somewhere and plot to take over the world, are we to assume that all bus drivers are evil, or that the only "real" bus drivers are the evil ones?
It is possible that there is some small, secret group of men (that may or may not be Masons) that are responsible for a lot of evil political things. That does not mean that all Masons are involved, and it does not mean that the other 99% are either oblivious, or naive, or anything else. It only means that in any large organization there are going to be some bad apples.
I would assume the fraternity could be judged as a whole based on the actions of the 99% instead of the 1%.
I can also speak from personal experience regarding 33rd Degree Masons, Grand York Rite High Priests (above Knight's Templar), Grand Masters, and many other lifelong and experienced Masons, and I have never met one that did not have the best of intentions. If there is any small nefarious group, they would have to have support from these members in order to have any power whatsoever, and I guarantee that these guys would not support anything that wasn't explicitly charitable and fair.