The language skills could be of value to a company even without a college degree, perhaps?
Not at all. I agree with Jardinero on all points. A general business degree isn't worth much in Poland, even with English. It seems everyone, their mother and their dog has one here. Other majors to avoid: psychology, sociology, political science, international relations, anthropology, journalism, education, languages and literature, history, philosophy, theology/divinity, arts, film, photography, music, architecture, tourism and recreation, agriculture, law, criminal justice, marketing, administration, economics, and just about anything that falls under "humanities", "liberal arts" or "xxxxxx studies" and doesn't require lots of math.
Plum majors right now and for the foreseeable future are engineering, especially petroleum, geological, biomedical and IT/communications engineering, logistics, financial mathematics, financial engineering, actuarial mathematics, econometrics and other majors with lots of advanced applied math and quantitative analysis skills.
If you want a meaningful business degree, get an MBA or similar masters degree from a good business school about five years after you graduate from college with a good major and get some meaningful work experience.