My evaluation of humans is not that they are "Lazy"-- It is that they are "Selfish", and not always rational.
"Selfish" in this case, I define the following way: "Seeks to promote the immediate desires or needs of the self as the primary motive, even if at the detriment of other priorities or agencies."
It is the "immediate" part that is the clencher. Without it, altruism can be described in terms of complex selfishness.
The college student that goes to the frat party every friday and tortures their brain and liver in the process of this weekly ritual, then goes on spring break and imbibes who-knows-what, only to come back and then feak out at the looming mid terms is not "Lazy"-- They are actively trying to find ways to prioritize what they desire at that moment, each and every moment, and are focusing a great deal of energy to get it. The apathetic student that sits in the corner and drools? That's lazy.
The fratboy syndrome student would be well advised to strongly reconsider their priorities, and the reason they are attending college in the first place, but they just represent a recurring cliche' on the "Selfish" behavior profile. ALL humans exhibit this behavior.
"I am going to college because I want a better paying job, so I can do X" Where X is something they find pleasurable.
"I bought this dog, so I could walk it, so that I could meet hot chicks."
"I bought this dog, so I could walk it, so that I could get more cardio exercise and live longer."
"I bought this dog, so that I could have a companion."
etc...
All of them focus on an immediate "Thing" that comes from some act, that ultimately or expressly satiates some desire or need.
This is just the basic human thought process. "I want/need X --- How to obtain? --> Do thing, get X!"
EG, "I want pretty Prada shoes, but they cost money! To get money, I need a job. I work at the job to get the money to buy the Prada shoes!"
It just so happens to work in hand with "I want lots of money so I dont have to work-- I will employ others to make Prada Shoes to my specifications-- I pay them a small percentage of the profit of the sale of the shoes, and pocket the rest!"
and "I want lots of money so I dont have to work-- I will employ others to make Widgets to my specifications-- I pay them a small percentage of the profit of the sales of the Widgets, and pocket the rest!"
Notice that at no point in any of these thought streams are the other, complicated consequences of these courses of action. Prada Shoes require synthetic materials, which to retain cost effecacy for the Prada company, have to be sourced from the cheapest reliable source--- So there's ecological and economic complications baked right in-- if not outright illegal labor. The Prada company head does not consider this. His goal is to make lots of money so he never has to work ever again. And he gets it. The lady working for the Widget company so that she can afford to buy pretty prada shoes does not contemplate the source of the materials that the Prada company makes the shoes from-- Nor the long term impact that her labor for the Widget company has on others for her paycheck to get said Prada shoes. Only that she works, to get the money, to get the shoes.
To me, this is the big failing of human kind. We aren't lazy. We are selfish. Pathologically so.