There will always be a certain number of people who will take advantage over other people
It has always been that way and it would always be as long as the world keeps going. It is only left to each individual if they want to be taken advantage of by some petty lazy scumbags or not. Greed, ignorance, carelessness and the inability or laziness to seek for further information is what makes a lot of people to get into the hands or trap of scammers. Scammers know this and they are always ready to take advantage of it.