They're careerists, they also care about getting credit — there's ego involvement, they want to be seen as important in shaping the outcome, or as important, if it's their druthers, to block an outcome.
Les interesa superarse, también les importa obtener crédito — el ego está involucrado, ellos quieren ser vistos tan importantes al formar el resultado, o tan importantes, si es su preferencia, para bloquear un resultado.