You might find it helpful to analyse Act II scene 6, which is when Romeo and Juliet meet to be wed by Friar Lawrence. Juliet says something very interesting to Romeo that indicates love, not status or prestige, is what is behind her desire to marry. Note what she says:
Conceit, more rich in matter than in words,
Brags of his substance, not of ornament.
They are but beggars that can counttheir worth;
But my true love is grown to such excess
I cannot sum up sum of half my wealth.
Juliet says in these lines that the true love that she and Romeo have for each other means that she is incredibly wealthy in this sense. She is clearly valuing love and respect over what can be gained by allying herself to someone who can bring her and her family wealth and prestige. It is thus evident that it is love that drives this union, not any other less noble motives.