Modern Wisdom: Why Sydney Sweeney Sparked a Culture-War Backlash

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When culture, sex, and status collide, even a 40-second ad can become a full-blown referendum on modern values. Today we're diving into the Sydney Sweeney controversy—specifically her ad for the sports betting company Novig. Why did this seemingly simple commercial cause such a firestorm?
Well, according to evolutionary psychologist William Costello, who discussed this with Chris Williamson on Modern Wisdom, the reaction was actually pretty predictable. Sweeney has a significant stake in this company, and she clearly understands that sex sells. But what's fascinating is how disproportionate the outrage became.
Right, and that's the first major argument here. Costello points out how absurd it is to claim that one ad has somehow set women's sports back decades. Especially when you consider that larger issues, like trans athletes in women's sports, draw far less sustained attention. There's also massive hypocrisy at play. Critics who tolerate sexualized content everywhere—in music, media, branding— suddenly sound puritanical when the target is Sydney Sweeney. Which brings us to the double standards issue. How are other celebrities treated differently?
That's where it gets really interesting. Costello argues the difference isn't just about sexuality, but about loyalty cues. A woman can self-sexualize and still be celebrated if she's seen as "one of them"— if she signals alignment with feminist or progressive in-groups.
This leads into the evolutionary psychology framework. Costello lays out three central ideas: intra-sexual competition, sexual economics theory, and female coalitional psychology. In simple terms, women are often reacting not just to beauty, but to what that beauty signals inside a social group. One of the clearest examples is the kind of covert judgment women may use. Costello says online critics won't say, "I'm jealous," but instead imply that "she just seems like the type of girl who would steal your boyfriend." That's a way of marking Sweeney as a rival.
He also explains the "cartel" logic of sexual economics theory. If sex is treated as a resource, then women have incentives to police one another's behavior. That's the logic behind slut-shaming, and it helps explain why a woman who appears to offer herself to the male gaze can trigger group punishment. The comparison with Sabrina Carpenter is really telling. Carpenter also sexualizes herself, but she signals that she's "a girl's girl."
Sweeney, by contrast, is seen as performing for men without first offering solidarity to women, which makes her easier to attack. And here's what's perhaps most troubling—the conversation about tribalism and selective outrage. Costello points out that gambling is objectively corrosive and a genuine danger to young men, yet the public debate focuses more on aesthetic offense than on that deeper harm.
Exactly. By the end, this becomes less about one celebrity and more about what modern culture rewards, punishes, and projects onto women's bodies. The Sydney Sweeney controversy is really a stress test for our ideas about autonomy, envy, and in-group loyalty. And ultimately, a reminder that public outrage often reveals far more than it admits.