Hello!
Keeping the light meaning from dictionary of word laie = nothing , the documentary suggested that Ceaușescu didn't give almost anything (food and so on...) to Romanian people.
The etymology of the word laie: Ukrainian лая (laja), Polish laja = pack of dogs from Slavonic lajati = to bark.
Then the meaning transferred to: group of nomad gypsy; bunch of noisy children, people
The word laie is used by Romanian writers in XIX-XX century with this significance.
There is also the adjective/noun lainic (laie + nic) = loafer, vagabond, slacker - a person who walks from one place to another for no purpose, who is lazy and avoids work
A avea o laie = to have nothing // A nu avea nicio laie = to have not even nothing
A face o laie = to fail, to suffer a failure, to succeed nothing
These above are now slang expressions, with offensive and obscene meaning. Not used but in frustration.