Unless they want someone to do the passionate thing more and better in which case they will support you - the Patreon / fanbase model. Or the passion is limite

Unless they want someone to do the passionate thing more and better in which case they will support you - the Patreon / fanbase model. Or the passion is limited unique items (artworks) in which case they will buy it - if you become popular and supply is limited this can be self reinforcing like fine-art as investment. Or they want the passionate person to work for them, so Google hire a passionate programmer so they can patent their work - knowing that the passionate programmer will improve in their off-time. Or game companies who hire the young and passionate as they know they are invested in the end product and are less likely to bail if times are tough or they get a better offer (this can be exploitative and is closer to what you suggested). Quite often things that become valuable are because people perceive qualities such as passion as 'honesty' in art and work this has value. If people perceive someone is just in it for the money then they may less inclined to invest in their development as they could stop at any time and somehow the end-product seems less honest, a passionate person will do the best they possible can, some-one in it for the money will do just enough to get paid (hyperbole but it can be a perception). True passion can be a very valuable quality - but it can also as you suggest be a crippling impediment to success, some are too passionate and unwilling to compromise so die poor ( e.g. Vincent van Gogh).