Whether green technological innovation can enhance enterprise value is related to the motivation of continuous investment green R&D. However, it is difficult to achieve "meaningful innovation" because this micro-mechanisms have not yet received sufficient attention from academia. "Meaningful innovation must lead to technological advancement and thus enhance corporate value. Further, this paper finds that this value creation mechanism is related to the characteristics of corporate governance actors. Among them, the degree of executive narcissism affects the degree of adventurousness in technological innovation decisions, while the shareholding of the "national team" implies the firm's ability to resist market risks and is related to the target direction of technological innovation and the market's confidence in the firm's technological returns. Therefore, we put them together in the model of green technology-meaningful innovation-innovation value to explore their dual moderating effect on value creation mechanism. Using a sample of 618 A-share listed companies with continuous R&D activities during 2015-2019, an individual-time two-way fixed-effects panel OLS model analysis finds that corporate green technology innovation promotes corporate value through corporate technological progress, i.e., green technology meaningful innovation enhances corporate value. Further, executive narcissism and "national team" shareholding jointly moderate the mediating role of green meaningful innovation, while corporate risk resistance contributes to the contribution of technological progress to corporate value. Finally, we discuss the theory of green innovation and corporate governance, hoping to contribute to the fledgling research on "meaningful innovation" in China.