The notion that the albums that didn't contain singles were lacking 'hits' is unfortunately an ignorant one. Sgt. Pepper's didn't have 'hits?' Many of the most famous Beatles songs (In My Life, Ob-La-Di, Lucy in the Sky, A Day in the Life, Back in the USSR, to name just a very few) weren't released as singles. But they were still hits.
The only one they didn't do that for was Abbey Road...the singles were included on the album.