Like all places in the world, there are poor, and there rich. And yes, the difference in living conditions are large. However, the cost in money is not always that large.

To give an example.
This is what $1 a day gets you, a dorm with a shared bathroom.

$5 a day gets a you private room with your own bathroom, a chair and a double bed. ($2.5 if you share)

For $12 a day ($6 if you share), you get your own large room, double bed, own bathroom, and lots of space.

And these prices are in a hotel/backpacker lodge.
For $80 a month, you can rent a room equal to the one above for long term.
So what can $1300 a month get you? A complete hotel with 10 rooms, fully furnished, with kitchen and washery, plus the ability to open a restaurant onsite. Yes, a hotel is currently on the market for $1300 a month.

So what is the average salary for a Cambodia. $50 to $100 (although many of the population lives on less than $1 a day in the countryside), And westerners wonder why they see us as walking banks, when some people here spend over a $1000 a week having fun on their holiday.

So please excuse me as I laugh at you, while you sit still drunk complaining to your friends. That the kids that you gave your iPhone 5 to last night, while drunk, so that they can take a picture of you, ran away with your phone. And then double excuse me, as i lay rolling on the ground in laughter, as you complain about the tuck tuck driver that you flagged down in your drunken state, and asked him to run after the kids, and he ran of with the $100 you gave him. ($1 to $2 is the cost to the ruins bike scooter and about $8 return by tuk tuk if you do not stay all day, about a 20 min drive).