On efficiency (note: Muslims are not exempted):
Ibn Omar reported that the Messenger of Allah (PBUH) said: "People are like a hundred camels amongst whom you hardly find one fit for riding." [Agreed Upon]
On our attitudes:
Abu Sayeed reported that the Messenger of Allah (PBUH) said: "You shall follow the practices of those before you, inch by inch and mile by mile, to the degree that if they enter into the hole of a lizard, you will follow them." He was asked: "O messenger of Allah, are they the Jews and Christians?" He replied: "Who else?" [Agreed Upon]
Ibn Omar reported that the Messenger of Allah (PBUH) said: "When my nation will walk with vanity, and the sons of kings, the princes of Persia and Byzantine will serve them, Allah will give authority to the wicked over the good." [At - Tirmidhi]