The rhetorical context here is that human children look for other human adults that they could potentially grow into in order to aim their own dreams and hopes for their adulthood. If a young human boy sees an adult human man pursuing computers, the young human boy learns that being interested in computers is a socially viable construct and this will affect how he pursues his interests in the future. In consequence, if a young human girl does not see any adult human women in computers, she may not understand that that option is available to her and this will affect how she pursues her interests. Although there is some fuzziness in determining this (some children grow up to be trailblazers, others pursue passions regardless of examples).
Wouldn't being an outcast make you even more attracted to heroes of your "outcast class?" Because, presumably, the hero had to overcome so much more for society to recognize them.
Depending on the era, we had Einstein, Turing, feinman. Kids my age had Gates (literally the richest man on the planet for my entire formative years), Jobs, Bill Nye. Little further along are the myth busters crew, musk...