The meaning in English of the Latin phrase 'Non sibi sed suis' is the following: Not to himself, but for his own. It may be seen as a variation on the Latin saying 'Sic vos non vobis', which means 'Thus you but not for you'. In both cases, the wider context is one of doing something, but not to one's benefit alone. In terms of the specific question, the situation may be one of doing something for one's family and friends.
The motto of Tulane University is 'Non Sibi Sed Suis'.
"Not for self but for country."
Not for himself, but others.
Michael Vick
Not for one's self, but for one's own. A motto by Skyler Wolf created in 1834. It reminds a student how he should act and be selfless. Tulane University
it is latin, it means: not to them
The motto of H. Sophie Newcomb Memorial College is 'Non Sibi Sed Suis'.
The motto of Metropolitan Borough of Hampstead is 'Non Sibi Sed Tott'.
The motto of Lagos Preparatory School is 'Non sibi, sed omnibus'.
The motto of George Abbot School is 'Non Sibi Sed Toti'.
The motto of Georgia Historical Society is 'Non sibi, sed Alliis'.
It is pronounced nan see-bee sayd pah-tree-ah