I don't think that you sound like a 12 year old punk at all, you have asked a very reasonable question.
I'ts all in how it works
For cheap companys like Boss, Lanzar, Pyramid, Pyle, Legacy, Blitz, Audiobahn, Dual, Majestic, Ultra linear and so on, they don't engineer their own products.
A higher end company will engineer its own stuff in house from the ground up, and then either have them manufactured in house or overseas (manufacturing costs are cheaper overseas), They test the amps themselves and give a minimum standard output rating at specific voltages.
The cheap companys, they just get ahold of these companys overseas that manufacture amplifiers (like in Korea or China) and order certain amps to meet their marketing needs and put their own brand names on them. these amps that they order are based on older designs from higher end companys, some of these older designs work quite well and will give you great performance while others are terribly flawed. These guys don't test these amps for minimum standard output rating they just throw on an unrealistic max output rating but if you look carfully you can somtimes find the original RMS rating from the manufacturers on line or in the manuals. Since there is no cost to engineer the amplifier and the cost of manufacturing is less you can find these at much lower prices then a high quality equivilent.