Kathryn Minshew is the CEO and founder of TheMuse.com, which she describes as a “career networking platform used by over 50 million Millennials and hundreds of employers to help individuals navigate their working lives.”

The real value of TheMuse, Minshew suggests, is found in the rich and more or less unique dataset the firm has been able to collect with the permission of its users, covering many Millennials but also individuals from Generation X and the Baby Boomers. More and more, Minshew has been asked to share this comparative data (and her own personal insight) with retirement plan providers and employee benefits industry stakeholders, as she did at a recent Wells Fargo Asset Management press discussion in New York.

“Our data suggests that Millennials will make up 75% of the workforce by the year 2025,” she told a group of financial trade industry reporters. “This is a really important statistic because we all know that Millennials have different goals and preferences than older generations, speaking broadly, when it comes to work. For example only 10% of Millennials who are currently looking for a new job with us say they are doing so for the purpose of finding higher paying work.”

The vast majority of Millennials instead tell TheMuse they are looking for work that will make them happier or give their life more meaning.

This may seem like data that is more relevant for other human resources and benefits discussions outside the retirement plan—say, for the decision about whether an employer should offer flexible working hours or the opportunity to work remotely. But based on Wells Fargo data and on her own firm’s analysis, Minshew suggested Millennials stand to inherit some $30 trillion in wealth over the coming decades, “and this has very important implications for their financial futures, including the workplace retirement planning picture.”

Responding to a question from PLANADVISER, Minshew agreed that Millennials, and for that matter the older generations, are “often over-generalized into one group.”

“There are nuances that require careful consideration,” Minshew said. “But there are also common themes that are borne out clearly by the data and which have a real impact in the marketplace today. Millennials widely report an admirable eagerness to invest in ways that benefit the greater good. And a fair number also reveal that they are not yet financially independent—which obviously represents a hurdle in their altruistic pursuits.”

According to data from Wells Fargo and TheMuse, if given $1,000 to invest, 86% of Millennials would be motivated to invest in a company that “makes the world a better place with their products.” At the same time, 74% also agree it “would be easier to stomach the ups and downs of investing if the investments had a positive impact on the world.”

There is also near-unanimous agreement among Millennials that “success at work is more about happiness than material prosperity.” Related to this, 77% of employed Millennials say they are happy to go to work every day.

Minshew suggested another important fact to consider is that 44% of Millennials say they have turned down a job offer with equal or better pay because of a “disconnect with the organizational culture of the prospective employer.”

“We see from our discussions with employers that there can be a premium of up to 20% on hiring costs and time taken to successfully fill a position when you have not established a process that sends a clear and consistent signal to prospective employees about the company’s culture and its treatment of its valued employees,” she concluded. “Employers must be willing to adopt creative tactics to understand the preferences of the work force of the future.”