Yet Occam's Razor is rarely found to be true - it's actually easy to hide a slightly more complex plan and make it look like a simple one and convincing everyone by saying "think Occam's Razor". Occam's Razor is not rationality, it's just brain applying laziness to assume nothing ever complicated occurs.

Edit: a very simple example: look at magic tricks. If Occam's Razor was true, then all magic tricks should imply that those who perform them are actually magicians. Or, we all know it's not the case, so there is indeed a more complicated trick being performed that is difficult to uncover just by looking at things.