for now I still don't understand why salary money isn't too good? I only know salary money is beautiful because it is generated by working and getting a salary every month,
I'm assuming that by "salary money" you meant the salary that you get from day jobs since you mentioned that you get it every month. There's no fixed salary when you're earning bitcoins.
I'd like to start by mentioning that the salary in other countries aren't that bad. In Australia, people are actually good with how much they are making. They are even allowed to have time for vacations and they sure do have the money to have one. They are able to afford insurance as well so they don't worry about their house burning down or an appliance breaking down since it'll be replaced by insurance. There's health care as well. Pretty much people from that country are paid so well that they are so chill. Their life expectancy is higher than other countries.
On the other hand, there's the third world country which I'm assuming where you live. There's a reason for the low salary, and it's so that everyone will be stuck in the same loop no matter which generation you're born in. Only a few people gets past the poverty line because of this. Even after working for decades, you wouldn't be having anything good, you wouldn't be having that great health care or insurance since you're not able to afford it. After time, the mindset that you have to work very hard in order to be rich has become the mindset of most people. And that's how you build an army of workers working for the capitalists and the government and never for themselves. The only ones that aren't affected by this are those who have parents who were able to beat the system somehow and managed to become rich. If you're not part of that, you're pretty much doomed unless you work abroad, which you don't have the money anyway. So yes, a loop.
Bitcoin allows us to communicate with first world people and since we're doing the same thing with them, we get to earn quite remotely close to what they're earning.