English Marketing Advertising / Public Relations

Men, conditioned from childhood into the 'mine is bigger than yours' syndrome, were the advertisers' first target with injunctions to unleash the wild, explore the freedom and other such ad-spiel.

Please explain the above sentence from "injunction...

I am also reproducing hereinbelow the preceding sentences for your reference:

Big cars are the rage and the man is just being tonier than the next guy.

Gone are the days when personal vehicles were bought for the purpose of commuting — nowadays they are just one big ego trip.