Identifying lone pairs when looking for formal charges
Drawing common electron pairs like they appear in most organic molecules is only then relevant, when


they play a keyrole in the reaction process
they should explain a special molecule structure
they are of an unusual quantity and thus resulting in a (intermolecular) formal charge


Otherwise especially molecules with a lot of atoms with unpaired electrons (e. g. saccharides) can get confusing. And in addition: they take more time to draw ;) 
Of course when learning organic chemistry its good to think of them a lot, because of their high reaction potential. 

You can be a 100 % sure that when they would not be there in compound 1 that it would be highlighted somehow, because that would result in a very unstable state.