I noticed the same thing. upon closer observation I believe each pile of poo now translates into $50,000. I find it a little excessive too, but you can simply delete it after awhile and put it back if you need more money. I also noticed both the maintenace worker and zookeeper now move twice as fast. Given that you can only use one staff hack at a time you may want keep this one as is. As for wondering off, I'm not sure, but I don't think its possible to keep them locked to the path while still being able to fix fences.