A number of cattle owned by each Maasai man can increase his status. That’s why it’s logical that dozens of heads of cattle graze down all the grass and also tamp down the ground, which contributes to ecological imbalance. Then there’s nothing left to eat for wild animals and they starve to death. Also, lions and other predators threatening the cattle nearby the Maasai habitation are eliminated.
The biggest influence on the Maasai culture is a collision with the western civilization together with growing tourism. The Maasai quickly adapted to white visitors, who are willing to pay for almost anything. They collect entrance fees for visits to their villages, sell souvenirs and let people take picture of them for money. You can derive from the way they behave that they are used to receiving gifts from visitors often. They openly ask you to give them what they see you are wearing at the moment, from watches, through shiny jewelry, to, for example, a snack.